A little boy whose dreams transcend reality is sucked into his own fantasy, which is everything he has dreamed of, until he unleashes an old secret that may not only destroy this perfect dream world but reality itself.
Unfortunately the movie Little Nemo: Adventures in Slumberland is not yet available on HBO Max.
| Directing | Masami Hata | Director |
| Writing | Ray Bradbury | Writer |
| Directing | William T. Hurtz | Director |
| Writing | Winsor McCay | Writer |
| Visual Effects | Nobuo Tomizawa | Animation Director |
| Production | Koji Takeuchi | Associate Producer |
| Production | Shunzo Kato | Co-Producer |
| Visual Effects | Yuichiro Yano | Key Animation |
| Visual Effects | Atsuko Tanaka | Key Animation |
| Visual Effects | Osamu Okubo | Key Animation |
| Camera | Hajime Hasegawa | Director of Photography |
| Art | Jean Giraud | Conceptual Design |
| Production | Yutaka Fujioka | Producer |
| Visual Effects | Noboru Takano | Key Animation |
| Visual Effects | Sadahiko Sakamaki | Key Animation |
| Sound | Vic Radulich | ADR Recording Engineer |
| Visual Effects | Kazuhide Tomonaga | Animation Director |
| Visual Effects | Kazuyoshi Takeuchi | Key Animation |
| Visual Effects | Hiroshi Shimizu | Key Animation |
| Visual Effects | Kuniyuki Ishii | Key Animation |
| Sound | Roy Prendergast | Music Editor |
| Sound | Masafumi Mima | Sound Editor |
| Visual Effects | Keiko Tomizawa | Key Animation |
| Visual Effects | Hiroyuki Horiuchi | Key Animation |
| Sound | Catt LeBaigue | ADR Recording Engineer |
| Sound | Shizuo Kurahashi | Sound Effects Editor |
| Visual Effects | Hiroaki Noguchi | Key Animation |
| Visual Effects | Toshitsugu Saida | Key Animation |
| Art | Nizou Yamamoto | Art Direction |
| Visual Effects | Hiroyuki Aoyama | Key Animation |
| Visual Effects | Jouji Yanase | Key Animation |
| Production | Sander Schwartz | Executive In Charge Of Production |
| Sound | Mikio Mori | Dolby Consultant |
| Sound | Kunio Ando | Sound Mixer |
| Visual Effects | Osamu Nabeshima | Key Animation |
| Visual Effects | Fumio Iida | Key Animation |
| Sound | Steve Rucker | Original Music Composer |
| Sound | Thomas Chase | Original Music Composer |
| Visual Effects | Yoshitake Iwakami | Animation |
| Visual Effects | Hiroko Kondo | Color Designer |
| Writing | Richard Outten | Screenplay |
| Writing | Jean Giraud | Story |
| Writing | Chris Columbus | Screenplay |
| Editing | Takeshi Seyama | Editor |
| Writing | Yutaka Fujioka | Story |
| Directing | Masanori Hata | Director |
| Sound | Richard M. Sherman | Songs |
| Sound | Robert B. Sherman | Songs |
| Art | Toshiro Nozaki | Background Designer |