Production notes

Following publication of Marcus Luttrell and Patrick Robinson's nonfiction book Lone Survivor (2007), producer Barry Spikings met Luttrell's attorney Alan Schwartz, who was interested in making a film adaptation. Schwartz suggested that Spikings' son-in-law Akiva Goldsman write the screenplay. Goldsman did not believe he was the right screenwriter for the project, and suggested that Peter Berg write and direct the film. Spikings and Goldsman passed the book on to Berg's producing partner Sarah Aubrey. Berg first learned of the book while filming Hancock, and after he and Aubrey read it, they arranged several meetings with Luttrell to discuss a film adaptation. Luttrell also viewed a rough cut of Berg's then-upcoming film The Kingdom (2007), and was impressed by his direction. "[Berg] caught me with his attention to detail", he said, "and how he portrayed the enemy in the film." The film rights to the book had become the subject of a bidding war among a host of established studios, including Warner Bros., Sony Pictures Entertainment, Paramount Pictures, DreamWorks, and Universal Pictures. Universal secured the rights in August 2007, for more than $2 million. The studio had also acquired the United States distribution rights as part of a negative pickup deal with the film's producers. Berg then chose to direct Battleship (2012) for Universal before resuming production on Lone Survivor.

When Mark Wahlberg read the script and expressed an interest in portraying Luttrell, he and his manager Stephen Levinson pitched the concept to producer Randall Emmett, the co-founder of Emmett/Furla Films, during the 2012 filming of 2 Guns. After reading the script, Emmett traveled to Los Angeles, where he met with Berg and Aubrey to discuss the film's production. After Universal secured the rights to distribute Lone Survivor in the United States, United Kingdom and Italy, executive producer Mark Damon's independent film company Foresight Unlimited took Berg and Emmett to the 2012 Cannes Film Festival to secure worldwide pre-sales. The film attracted $30 million in worldwide pre-sales to distributors in 40 international markets. Lone Survivor had an estimated budget of $40 million. Three production companies – Emmett/Furla Films, Herrick Entertainment, and Envision Entertainment – collaborated to finance the film. In addition, as part of the negative pickup deal with Universal, the film's producers—Berg, Aubrey, Spikings, Goldsman, Emmett, Wahlberg, Levinson, Norton Herrick, and Vitaly Grigoriants—contributed at least $1 million each to finance production costs. To avoid further costs, Berg chose to work for a minimum salary allowed under Directors Guild of America rules, $17,000 a week. He also convinced several cast and crew members to lower their asking prices.

Berg had discussed the project with Wahlberg, Taylor Kitsch, Emile Hirsch, and Ben Foster years earlier. Universal held an open casting call in Los Angeles, aiding in the filmmakers' search for supporting actors, extras, photo doubles, and stand-ins. In August 2012, it was announced that Alexander Ludwig and Eric Bana had joined the cast. Although Wahlberg, Kitsch, Hirsch and Foster had physically trained for their roles prior to filming, Luttrell organized a three-week training regimen at a bootcamp in New Mexico, where the actors were trained by elite military personnel in weapons, military communications, and tactics. Military advisor Mark Semos trained the four actors in live-firing exercises so they could feel the physical impact of firing military rifles. They also practiced "shoot move cover" drills to enable them to react convincingly as Navy SEALs during filming.

While the book chronicles Luttrell's 1999 enlistment and training, as well as his 2005 deployment to Afghanistan, Berg decided that the film adaptation would focus mainly on the events of the failed United States Navy SEALs mission Operation Red Wings, as well as the bonding and camaraderie of Luttrell and his fallen teammates. Prior to writing the screenplay, Berg met with the families of the deceased. "My research started with meeting the families of the SEAL teammates who were killed", he said. "I went to New York and met the Murphys. I went to Colorado and met the Dietzes, and I went to Northern California and met the Axelsons. After spending time with them, you realize that these kids were the best and the brightest; they were the stars of the families. The grief and the wounds are still very raw. You would have to be inhuman to not feel the responsibility when that kind of grief gets shared with you." Berg also expressed that he was motivated by the families to make the story as realistic as possible; his goal was "to put [the viewer] into the experience of what these guys went through. And it was obviously a traumatic and violent and exhausting experience". To provide authenticity, Luttrell moved into Berg's home for one month while Berg was writing the script. He acted as a consultant, detailing to Berg his eyewitness account of the events that unfolded during Operation Red Wings. Berg later embedded with a Navy SEAL team—becoming the first civilian to do so—and lived with them for a month in Iraq while he continued writing the screenplay. In re-enacting the injuries and deaths of the fallen Navy SEAL servicemen, Berg relied on Luttrell's eyewitness accounts from the book, as well as autopsy reports of the deceased and after-action reports. The United States Navy provided incident reports related to the mission, as well as archival military training footage, which is shown during the film's opening credits sequence. Still photographs shown during the opening credits sequence were taken from Richard D. Schoenberg's war photography book The Only Easy Day Was Yesterday: Making Navy SEALs. During filming, there were some dialogue changes in comparison to Berg's script, as the filmmaker occasionally encouraged the actors to improvise their lines.

Principal photography was scheduled to start on September 15, 2012, but did not commence until October of that year. The film was shot on location in New Mexico. The production received a 25% tax credit for shooting in the state. Berg was granted creative autonomy, as Universal did not fully oversee the film's production. With Lone Survivor, Berg continued his trademark of having war veterans as part of his film crew. Luttrell, along with several other Navy SEAL veterans, acted as technical advisors during the production. In addition, senior military advisor Harry Humphries, a former Navy SEAL who had worked with Berg on Hancock and The Kingdom, served as an associate producer. Filming first took place at the Sangre de Cristo Mountains of the Santa Fe National Forest. Eight days were spent on mountains ranging from 11,000 to 12,000 feet (3,400–3,700 m). In recreating the Hindu Kush mountain range that stretches between Afghanistan and Pakistan, the film crew shot at 10 separate locations in the national forest. Stunt coordinator and second unit director Kevin Scott was given the task of depicting the four Navy SEALs tumbling down rugged terrain with sixty-degree inclines. Scott did not choreograph the stunts, nor did he have the performers use wires or dummies; He instructed them to fall 15 to 20 feet (4.6–6.1 m) off cliffs and avoid looking at the ground until right before impact. Several stunt performers were injured after falling from the mountains, as the falls proved too difficult to control. Production moved to Chilili, New Mexico for two weeks of filming. The location's wooded areas were used to film several battle scenes, and the art department built sets to create an Afghan village occupied by Ahmad Shah (Yousuf Azami) and his Taliban insurgents, as well as a Pashtun village where Luttrell (Mark Wahlberg) is rescued. Filming then moved to Kirtland Air Force Base in Albuquerque, New Mexico, which doubled for scenes set in Bagram Airfield, a U.S. military base in Afghanistan. The production then moved to soundstages at I-25 Studios in Albuquerque. The filmmakers occupied two 26,000-square-foot (2,400 m2) stages in the facility for interior scenes and bluescreen work. The art department built the character Gulab's house, as well as interiors for Bagram Airfield's patrol base Camp Ouellette. The bluescreen work involved scenes depicting a CH-47 Chinook in a gimbal, and a 4-foot scale model of a Hindu Kush mountain cliff built by the art department team in Los Angeles. Principal photography concluded in November 2012, after 42 days of filming.

Lone Survivor was director of photography Tobias Schliessler's fifth collaboration with Berg, as well as Berg's first film to be shot digitally. Schliessler intended to shoot the film with Arri Alexa cameras, but instead used Red Epic digital cameras with Fujinon and Angénieux lenses. He chose the Red Epic camera "due to its compact size and lightweight body." For the film's visual style, Schliessler was influenced by British-American photojournalist Tim Hetherington's war photography book Infidel, which details a single U.S. platoon assigned to an outpost in the Korengal Valley during the war in Afghanistan. Prior to filming, Schleissler and Berg shot test footage with the digital cameras and brought it to digital colorist Stefan Sonnenfeld at post-production facility Company 3 for color grading. The Santa Fe National Forest's rocky terrain and steep inclines proved difficult for conventional camera equipment—such as cranes and dollies—which resulted in much of the film's scenes being shot by the camera operators, who were rigged to aerial ski lifts above the action. "The location we picked was on top of the ski area above 12,000 feet in Santa Fe, and the high altitude made it extremely physically demanding", Schleissler explained. "All our equipment had to be hand-carried into some of our remote locations, which meant we had to limit ourselves to the bare minimum ... No one ever hiked to the set empty-handed, including our producers. It was one big team effort that made us a close film family." Digital cinema post-production facility DeLuxe supplied the production with a 40-foot trailer, known as the EC3 (a joint venture between Company 3 and EFILM). The equipment enabled Schleissler to oversee every shot of the film in the EC3 trailer. He also collaborated with colorist Adrian Delude in changing the exposure for all cameras used which, according to Schliessler, "would have been more difficult when shooting on film." Company 3 carried out the digital intermediate.

To produce the many injuries received by the four-man SEAL team, the filmmakers recruited KNB Effects team Gregory Nicotero and Howard Berger. To aid Nicotero and Berger in recreating the injuries of the fallen servicemen, Berg provided autopsy reports of the deceased. Special effects supervisor Bruno van Zeebroeck created RPG explosions and bullet hits for the battle sequences that occur in the roads around Gulab's home. Multiple branches of the United States Armed Forces supplied the production with military vehicles. The United States Air Force provided two Sikorsky HH-60 Pave Hawks from Kirtland Air Force Base, both of which were flown by military personnel and used to depict a combat search and rescue. The United States Army provided the production with two CH-47F Chinooks and two Boeing AH-64 Apaches from Fort Hood, Texas. The United States Marine Corps provided thirty Marine Corps reservists for scenes set in Bagram Airfield and Jalalabad. According to The Economist, Beretta paid the production company $250,000 to use their guns in the film in place of the Sig Sauer p226 and Kimber 1911s weapons actually used by SEAL teams.

Costume designer Amy Stofsky ensured that the military wardrobe seen in the film reflected the 2005 time period. According to Stofsky, what the fallen servicemen wore back then is no longer current issue, as the United States Armed Forces stopped manufacturing the uniforms in 2006. While researching the time period, Stofsky met with the fallen servicemen's families, as well as Navy SEAL teammates. Stofsky and the wardrobe department collaborated with the Hollywood-based costume facility Western Costume to find the right fabric for the military uniforms. She and her team manufactured uniforms for the film's lead actors, extras, stunt and photo doubles, and military personnel who were also acting as extras. Stofksy noted that a total of "36 cookie cutter uniforms" were produced for Wahlberg. In designing the costumes for the Pashtun people and Taliban forces, Stofsky aimed to create a visual distinction between the villagers and Taliban fighters. "Luttrell survived because of the age-old tradition of the Pashtun culture in providing hospitality and safety to those that enter their home", she explained. "We dyed the Taliban's costumes black, charcoal, wine, and indigo and kept the villagers light. Their humanity prevails. This is what we hoped to get across." Stofsky used a North Hollywood-based Afghan vendor, Moe Noorzai, for traditional Afghan clothing including vests, pants, dresses and Kashmir scarves. Stofsky also had a New Mexico-based tailor produce all of the turbans featured in the film. Zarin Mohammad Rahimi, an Afghan refugee who fled to the United States to avoid the Taliban, and his sons, Muhammad Nawroz Rahimi and Nawaz Rahimi, were hired as technical advisors during production. The Rahimis collaborated with Stofsky, as well as the wardrobe and casting departments, to help them understand the language, customs and fighting methods of the Pashtun villagers and Taliban fighters. Zarin Mohammad Rahimi appeared in a minor but pivotal role as an elderly shepherd.

Editing and post-production work took roughly seven months to complete. Colby Parker Jr. served as editor, having previously worked with Berg on editing Battleship. Parker spent six months editing the film at the Lantana Entertainment Media Campus in Santa Monica, California. The editorial department used four Avid Media Composer systems to edit the film. Parker edited the film during principal photography, but was not on location. "I like to blast through the footage to keep up with the camera. This way I can let [Berg] know if any extra coverage is needed", he explained. "Often I'll get word to the 1st [assistant director] and he'll sneak in extra shots if the schedule permits. Although I will have a first assembly when the production wraps, Peter will never sit though a complete viewing of that. He works in a very linear manner, so as we start to view a scene, if there's something that bothers him, we'll stop and address it." The first cut of the film was two-and-a-half hours long. Parker then cut the film down to two hours when he realized there was a way to further trim the film. "There were a number of scenes that paced well when we intercut them rather than letting them play as written in a linear fashion. For instance, we wanted to let the mission briefing scene play normally—this is where the SEAL team is briefed on their target. That scene was followed by a scene of the target beheading a local. We realized that an actual briefing is very technical and rote, so intercutting these scenes helped keep the audience engaged." Sound editing and mixing work took place at Todd Soundelux. Supervising sound editor Wylie Stateman recorded on-location sound during filming, placing microphones on the actors' backpacks and clothing "so [the viewers] would hear explosions and bullets going by as though [they] were with these guys as they were being attacked." In creating sound effects for the environment of each scene, Stateman relied on foley design, rather than traditional sound effects.

The two visual effects companies for the film were Industrial Light & Magic (ILM) and Image Engine, with overall supervision by Grady Cofer and Jesper Kjölsrud, respectively. In total, the film has over 400 visual effects shots. ILM was responsible only for creating a helicopter crash sequence in the film. Berg requested that the sequence be done by ILM, who had also worked on his previous film Battleship. Image Engine's effects work consisted mainly of set extensions and location enhancements; scenes were supplemented with computer-generated mountains, buildings and backgrounds, as well as muzzle flashes for firearms.

The film's score was composed by Steve Jablonsky and American post-rock band Explosions in the Sky. Jablonsky said of the collaboration, "It was great. I didn't work directly with them because they're in Austin, Texas and I'm in L.A. I spoke to them on the phone and I think sixty, sixty‑five percent of the scores is them. We ended up doing our own things. We tried to not have two totally different sounding scores." Berg said, "[Jablonsky] did the last reel; the band Explosions in the Sky did pretty much did everything else. They have an emotional, tender quality to their music, even when it gets aggressive. I didn't want the score to be overly aggressive, I wanted it to be haunting and emotional. Steve Jablonsky came in at the end to do something more traditional, but when Steve does "traditional", it's not the usual strings. He created a wonderful sound at the very end." The motion picture soundtrack album was released on December 17, 2013 by record label Metropolis Movie Music.

Review aggregation website Rotten Tomatoes sampled 227 reviews and gave the film an approval rating of 75%, with an average score of 6.60/10. The website's critical consensus reads, "A true account of military courage and survival, Lone Survivor wields enough visceral power to mitigate its heavy-handed jingoism." Another review aggregator, Metacritic, assigned the film a weighted average score of 60 out of 100, based on 44 reviews from mainstream critics, indicating to be "mixed or average" reviews. CinemaScore polls conducted during Lone Survivor's opening weekend of wide release reported that male and female audiences gave the film a rare "A+" (on an A+ to F scale), with exit polls showing that 57% of the audience was male, while 57% was at least 30 years of age or older. The Los Angeles Times reported the critics' consensus was that "the film succeeds in bringing the mission to life, although it avoids probing the deeper issues at hand." Justin Chang, writing for Variety magazine, gave the film a positive review and called it "the most grueling and sustained American combat picture since Black Hawk Down, as well as a prime example of how impressive physical filmmaking can overcome even fundamental deficiencies in script and characterization." Alonso Duralde, writing for The Wrap, stated, "The film never makes a grand statement about whether or not the war in Afghanistan is, per se, a mistake, but it does portray war itself as a disgusting folly. Berg sets up the cathartic moments we're used to in movies like this, but then he pulls out the rug, reminding us that the cavalry doesn't always miraculously show up in time to save the day." Todd McCarthy, writing for The Hollywood Reporter, described the film as being "rugged, skilled, relentless, determined, narrow-minded and focused, everything that a soldier must be when his life is on the line," while Scott Bowles of USA Today called Lone Survivor "brutal, unrelenting and ultimately moving." Leonard Maltin described the film as "visceral", while praising Berg, the main actors, and the stunt performers for successfully reenacting the events of Operation Red Wings. Maltin concluded that the film "is a tough movie but a rewarding one. It's humbling to watch this dramatization of the sacrifices these men make, without hesitation. Peter Berg was determined to do justice to them, and he has succeeded." Betsy Sharkey, writing for The Los Angeles Times, praised the overall look of the film: "The production and costume designers have paid a great deal of attention to the details, from the uniforms and tribal robes, to the bullet wounds and blood. It certainly adds to the film's verisimilitude." Several reviewers criticized Lone Survivor for focusing more on its action scenes than on characterization. In his review for The Star-Ledger, Stephen Whitty wrote, "This is the sort of bare-bones story that well served plenty of World War II movies once, and it would work here, if Berg had the sense to develop these men as characters, first. But we don't really get to know any of them, or what they might bring personally to this life-or-death emergency." Rafer Guzman of Newsday wrote, "The movie seems more concerned with military-style action than with telling us who these fallen heroes really were." One of the film's strongest detractors was Time Out magazine's Keith Uhlich, who called the film "war porn of the highest order". Geoff Pevere wrote in his review for The Globe and Mail, "The sensation of being pinned down and shot apart is so harrowingly conveyed ... that one almost forgives the movie's failure to be quite as persuasive in almost every other respect." Film critic Steven Boone, writing for RogerEbert.com, compared the film's violence to that of Mel Gibson's 2004 film The Passion of the Christ: "What's in between amounts to The Passion of the Christ for U.S. servicemen: a bloody historic episode recounted mainly in images of hardy young men being ripped apart, at screeching volume. Though Berg's source material isn't the New Testament, he often handles Navy SEAL Marcus Luttrell's account ... with the thunderous reverence Mel Gibson brought to Christ's crucifixion and resurrection."

Lone Survivor received various awards and nominations, in categories ranging from recognition of the film itself to its screenplay, direction, stunts, and sound editing, to the performance of its lead actor, Mark Wahlberg. Lone Survivor received two Academy Award nominations for Best Sound Editing and Best Sound Mixing, although the film failed to win either; at the 86th Academy Awards, the film lost in both categories to Gravity. In addition to the following list of awards and nominations, the film was named one of the ten best films of 2013 by the Las Vegas Film Critics Society, who also ranked it as the Best Action Film of 2013.

Mohammad Gulab, the Afghan villager who rescued Marcus Luttrell during Operation Red Wings, attended the movie's premiere in New York City. He also appeared with Luttrell on 60 Minutes and met the film's director, who thanked him for his actions. Since Red Wings, Gulab had been targeted numerous times by the Taliban. After the success of Lone Survivor, with the Taliban having obtained bootleg copies of the movie, Taliban militants threatened Gulab further by phone. Soon after his return to Afghanistan, having rejected asylum in the United States on Luttrell's advice, the Taliban exploded a device in front of him, which Gulab survived. Gulab received a written threat from a local Taliban official. His home was stormed in 2014. While he and his family managed to defend it, threats on his life continued. With the assistance of attorney Michael Wildes, Gulab and his family managed to board a flight from Kabul to New Delhi, India. After receiving American visas, they arrived in the United States in 2016 and now reside in Fort Worth, Texas.