Kamen Rider Movie War Mega Max: Kamen Rider vs. Kamen Rider Fourze & OOO

Kamen Rider × Kamen Rider Fourze & OOO: Movie War Mega Max (仮面ライダー×仮面ライダー フォーゼ&オーズ MOVIE大戦MEGA MAX, Kamen Raidā × Kamen Raidā Fōze Ando Ōzu Mūbī Taisen Mega Makkusu) is a 2011 film in the Kamen Rider Series that was directed by Koichi Sakamoto. It features the casts of Kamen Rider Fourze and Kamen Rider OOO and opened in Japanese theaters on December 10, 2011. Movie War Mega Max also features the first seven Kamen Riders (Kamen Rider 1, 2, V3, Riderman, X, Amazon, and Stronger) to commemorate the franchise's 40th anniversary, as well as the return of Kamen Rider Double. Unlike previous Movie War films, which were divided into 3 segments, Movie War Mega Max is divided into 5 parts. Like previous Movie War films, the secondary Kamen Rider of Kamen Rider Fourze, Kamen Rider Meteor, makes his debut in the film.