Unreleased animated feature film directed by Ryutaro Nakamura (Serial Experiments Lain). The story is adapted from the children's book "Adventures of Tom the Small Cat" by Masumi Lino and Yumiko Imai.
Unfortunately the movie Tomcat's Big Adventure is not yet available on HBO Max.
| Writing | Ryutaro Nakamura | Writer |
| Visual Effects | Satoru Iriyoshi | Key Animation |
| Visual Effects | Kahoru Hirata | Key Animation |
| Visual Effects | Kouichi Arai | Key Animation |
| Visual Effects | Masatomo Sudo | Key Animation |
| Visual Effects | Kinuko Izumi | Key Animation |
| Visual Effects | Toshiyuki Inoue | Key Animation |
| Visual Effects | Yoshio Mizumura | Key Animation |
| Visual Effects | Hiromi Niioka | Key Animation |
| Visual Effects | Kinichirou Suzuki | Key Animation |
| Visual Effects | Makiko Futaki | Key Animation |
| Visual Effects | Utako Yamazaki | Key Animation |
| Visual Effects | Katsumi Aoshima | Key Animation |
| Visual Effects | Masaru Kitao | Key Animation |
| Visual Effects | Yoshiji Kigami | Key Animation |
| Visual Effects | Hisashi Abe | Key Animation |
| Visual Effects | Shinichi Toukairin | Key Animation |
| Visual Effects | Yoshihiro Matsushita | Key Animation |
| Visual Effects | Hiroyuki Okiura | Key Animation |
| Visual Effects | Shinji Morohashi | Key Animation |
| Directing | Ryutaro Nakamura | Director |
| Art | Hiromasa Ogura | Background Designer |
| Visual Effects | Manabu Ohashi | Character Designer |
| Sound | Kenji Kawai | Music |
| Visual Effects | Manabu Ohashi | Animation Director |
| Art | Hiromasa Ogura | Art Direction |
| Writing | Masumi Iino | Original Story |
| Crew | Ryutaro Nakamura | Script |
| Camera | Akihiko Takahashi | Director of Photography |
| Sound | Shigeharu Shiba | Sound Director |
| Writing | Ryutaro Nakamura | Storyboard |
