Released to commemorate Kamen Rider 555's 20th anniversary, the film takes place after the ending of the TV series. Masato Kusaka and Mari Sonoda are fighting a new iteration of Smart Brain led by Kitazaki, who begins an operation to exterminate all Orphnochs, with Takumi Inui seemingly working with them for unknown reasons since his disappearance.
Unfortunately the movie Kamen Rider 555 20th: Paradise Regained is not yet available on HBO Max.
| Sound | Issa Hentona | Theme Song Performance |
| Sound | Akio Togashi | Theme Song Performance |
| Directing | Sanshiro Wada | Action Director |
| Writing | Shotaro Ishinomori | Original Concept |
| Sound | Hayato Matsuo | Music |
| Directing | Ryuta Tasaki | Director |
| Writing | Toshiki Inoue | Writer |
| Production | Shin-ichiro Shirakura | Producer |
| Production | Masayuki Yamada | Producer |
