Trivia / Kamen Rider × Kamen Rider Wizard & Fourze: Movie War Ultimatum

• Celebrity Voice Actor: Demon Kakka of SEIKIMA-II as Xatan.
• Prop Recycling: Take a close look at the monsters created by kidnapped Gates. If you watched Kamen Rider OOO, you can spot the parasite Catwoman Yummy and the mixed type Lion/Jelly fish Yummy, both being originally created by Kazari. There is also Lost Ankh´s Boxing Fowl Yummy or numerous trash yummies.
• What Could Have Been
  • Recognised for his work on Gekisou Sentai Carranger, Yoshio Urasawa pitched Wizard getting pregnant and the assembled Kamen Riders playing baseball, but this was rejected.
  • Director Koichi Sakamoto pushed for an "Ishinomori Avengers" series and had ideas that the reimagined Space Ironmen Kyodain who previously featured in Kamen Rider Fourze the Movie: Everyone, Space Is Here!, could reappear as heroes in addition to Inazuman and the Akumaizers, that Movie War Ultimatum could serve as a decisive battle against Foundation X, and a post-credits scene could set up follow-ups as in Iron Man by having the wreckage of the Kyodain being retrieved from the Moon. The Kyodain would return in Kamen Rider × Super Sentai × Space Sheriff: Super Hero Taisen Z, still antagonists albeit somewhat more honorable only to be killed there as well, Foundation X would rest for a few years before resurfacing in later spin-off works, and the concept of a Toei Hero crossover series would be realized with Space Squad.
  • Both Ayuri Konno and Marie Iitoyo auditioned for the part of Rumi "Ruby" Komaki before being cast in Zyuden Sentai Kyoryuger, which Sakamoto also worked on as a director, as Amy Yuuzuki (Kyoryu Pink) and Yayoi Ulshade (Kyoryu Violet) respectively.
  • Wizard's movie-exclusive Special Rush form was not in the original plan and only featured with Sakamoto's request, being a recolor of the then upcoming All Dragon form. It is also thanks to Sakamoto that the reimagining of the Akumaizer's vehicle the Zaidabeck was included, as he had proposed it to Hiroshi Butsuda.

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