Harmony Within the Period of Tension

Harmony Within the Period of Tension is a 2025 Japanese-American anime crossover film produced by The Pokémon Company, Sega, DC Entertainment, Toho Studios, OLM Inc., TV Tokyo, Chernin Entertainment, and 21 Laps Entertainment and distributed by A24. The film is a crossover between the Pokémon anime series created by Satoshi Tajiri, Junichi Masuda and Ken Sugimori (specifically during the events of Pokémon XYZ), various franchises owned and/or created by Sega including Sonic the Hedgehog, Super Monkey Ball, Ecco the Dolphin, Nights into Dreams, Samba de Amigo, Billy Hatcher and the Giant Egg, and Space Channel 5, the superhero teams Justice League and the Teen Titans created by DC Comics, and various monsters from Toho's kaiju films, including but not limited to Godzilla, Mothra, Rodan, King Ghidorah, Gigan, Kamacuras, Ganimes, Kamoebas, Baragon, and Biollante to name a few. It is the first film in the Endless Crossover Universe (ECU) and the first film associated with the Pokémon franchise to be set in the main anime timeline since Volcanion and the Mechanical Marvel (2016), as well as the first for Pokémon to be a crossover film. Directed by Tetsuo Yajima from a screenplay he co-wrote with the filmmaking duo of Phil Lord and Christopher Miller, the film features an ensemble voice cast consisting of Sarah Natochenny, Ikue Ōtani, Haven Paschall, Mike Liscio Jr., Alyson Leigh Rosenfeld, Lisa Ortiz, Jonathon Silver, Catrin Lloyd Bollard, Jake Paque, Andrew Paull, Michelle Knotz, Eric Stuart, James Carter Cathcart, Ben Schwartz, Colleen O'Shaughnessey, Idris Elba, Anna Kendrick, Miranda Cosgrove, Jim Carrey, Keanu Reeves, Scarlett Johansson, Bryce Papenbrook, Dwayne Johnson, Jessica Brown Findlay, Gabriel Iglesias, Emi Lo, Amber Hood, Margot Robbie, Michael Keaton, Henry Cavill, Rosario Dawson, Jason Momoa, Adam DeVine, John Boyega, Hal Jordan, Harry Lennix, Andrew Garfield, Kimiko Glenn, Billie Eilish, Greg Cipes, Iñaki Godoy, H. D. Quinn, Abe Goldfarb, and Keith David. In the film, an alliance between Team Flare and Darkseid threatens to erase the multiverse, forcing Ash Ketchum and his allies to team up with the Justice League, Sonic the Hedgehog, the classic Toho kaiju, and other members of the multiverse to rescue their homeworlds from being wiped out permanently.