The ponies of Equestria prepare for their first Friendship Festival, overseen by Princess Twilight Sparkle in Canterlot. The festivities are interrupted by an army of monsters commanded by the Unicorn Tempest Shadow, who is ordered by her superior, the Storm King, to capture Equestria's princesses and Twilight and empower his mystical staff with their magic in exchange for restoring her broken horn. Tempest uses magical orbs to petrify Twilight's fellow princesses and mentors Princess Celestia, Princess Luna and Princess Cadance but Twilight escapes with her six friends: Pinkie Pie, Rainbow Dash, Rarity, Applejack, Fluttershy and Spike.
Following incomplete instructions from Celestia, Twilight and her friends set out to find the "queen of the hippo" beyond Equestria. They arrive at the desert city of Klugetown, where they accept an offer by a con artist feline named Capper to escort them to the "hippos", unaware that he intends to sell them to local mob boss Verko as to settle a debt he owes to him. As Capper begins to develop a genuine friendship with them, Twilight discovers a map that reveals the "hippos" to be hippogriffs. Just as they're about to leave, Verko arrives to buy them, exposing Capper's treachery. When Tempest arrives in pursuit of Twilight, the group evades her aboard a delivery airship run by birdlike pirates led by Captain Celaeno, whom Rainbow Dash persuades to take them to the hippogriffs' kingdom on Mount Aris. However, she accidentally gives their location away to Tempest with a Sonic Rainboom, forcing the group to reach Mount Aris in a makeshift hot-air balloon.
While exploring the hippogriffs' deserted kingdom, Twilight's group is led by the seapony Princess Skystar to her home of Seaquestria in an underwater cavern. Skystar reveals her kind to be the hippogriffs, transformed by a magic pearl used by her mother, Queen Novo, to hide from the Storm King and his forces, which she denies giving to the group to use against the Storm King. Twilight, fed up with her friends' carefree antics throughout the journey, attempts to steal it while letting her friends unknowingly distract the seaponies. Her plan backfires when she triggers an alarm right after Pinkie persuades Novo to give them the pearl, resulting in Novo angrily banishing the entire group back to the surface.
Back at the surface, Twilight and her friends get into an argument over her actions, ending with Twilight losing her temper and furiously disowning them as her friends while flaring her horn at Pinkie. Deeply hurt and offended, the group, barring Spike, leave Twilight, unknowingly allowing her to be finally captured by Tempest, who gains her sympathy as she reveals the loss of her own horn as a foal due to an Ursa Minor attack caused her own friends to leave her because of her unstable magic.
Upon learning of her kidnapping from Spike, Twilight's friends immediately spring into action and return to Canterlot to rescue her with the help of a reformed Capper, Celaeno and the pirates, and Skystar, who have followed them after being inspired by their friendship. Using his newly empowered staff, the Storm King conjures a storm against the group and betrays Tempest, whom Twilight saves. Twilight and her friends quickly reconcile and manage to recover the staff, ending the storm. The Storm King hurls a magical orb to petrify the group, but Tempest jumps in his way, petrifying them both. The Storm King falls to the ground and smashes to pieces, while the group uses the staff to revive Tempest, who returns the stolen magic to the princesses, restoring them and repairing the now-damaged city. The Friendship Festival resumes with the ponies celebrating alongside everyone whom Twilight and her friends encountered and befriended on their adventure. Encouraged by Twilight, Tempest joins in by producing a fireworks display with her broken horn, and happily accepts the group's friendship.
At San Diego Comic-Con in 2012, Friendship Is Magic head writer Meghan McCarthy commented on the possibility of a feature film based on the series, saying that it was not in her control whether or not the film would be made. The film was announced on October 20, 2014, with Joe Ballarini attached as screenwriter and McCarthy as co-executive producer. Hasbro Studios president Stephen Davis said of the film that "I think it gives us an opportunity to tell a bigger story, that maybe we [can't] tell on television" and that "[it's] also an opportunity to broaden the franchise".
Reception
My Little Pony: The Movie grossed $21.9 million in the United States and Canada, and $39.4 million in other territories, for a worldwide total of $61.3 million on a production budget of $6.5 million.
In the United States and Canada, the film was expected to gross between $10 million and $17 million from 2,528 theaters in its opening weekend. It made $3 million on its first day. It ended up opening to $8.9 million, finishing 6th at the box office.
Storm King: Here's the deal. I'm in the middle of a big re-brand here. "The Storm King" is tracking, well, as intensely intimidating, but you know what? I need to back it up. You know what I need to back it up with? A…
Twilight Sparkle: [cries, remorsefully and shamefully] No.. I can't... I ruined everything. There's no chance to save Equestria now. [louder and harder crying] It's all my…
Tempest Shadow: I saw the truth. My "friends" abandoned me when times got tough. Looks like I'm not the only one. Face it, princess. Friendship has failed you, too.…