Isekai Quartet: The Movie – Another World (Japanese: 劇場版 異世界かるてっと ～あなざーわーるど～, Hepburn: Gekijōban Isekai Karutetto: Anazā Wārudo) is a 2022 Japanese animated film featuring a crossover between the chibi-style characters of the light novel series Overlord, KonoSuba, Re:Zero − Starting Life in Another World, The Saga of Tanya the Evil, and The Rising of the Shield Hero, which are published by the divisions of Kadokawa Future Publishing. Produced by Studio Puyukai and distributed by Kadokawa Animation, the film is written and directed by Minoru Ashina. In the film, a wormhole brings Class 1 and 2 students to another world where out-of-control golems exist.

The anime television series Isekai Quartet was set to have a film in July 2021, with Ashina attached to write and direct it. The cast from the anime series was also confirmed to be returning that month, with Minami Tanaka, Nana Mizuki, and Toshiyuki Morikawa joining them in March 2022 to voice the original characters. Additional staff working on the film were also announced that month.

Isekai Quartet: The Movie – Another World premiered in Shinjuku on June 5, 2022, and was released in Japan on June 10. The film grossed US$639,725 worldwide.