This will be the second time the two shows got movies. Kamen Rider Saber had its first movie last December 18, 2020 with the release of Kamen Rider Saber Theatrical Short Story: The Phoenix Swordsman and the Book of Ruin. Kikai Sentai Zenkaiger on the other hand, had its first movie last February 20th with the release of Kikai Sentai Zenkaiger The Movie: Red Battle! All Sentai Rally!! as part of Super Sentai Movie Ranger 2021.