Kamen Rider × Kamen Rider Fourze & OOO: Movie War Mega Max
 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. It features the casts of Kamen Rider Fourze and Kamen Rider OOO and opened in Japanese theaters on December 10 2011.