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 |
| Directing | William T. Hurtz | Director |
| Writing | Winsor McCay | Writer |
| Writing | Ray Bradbury | Writer |
| Visual Effects | Jouji Yanase | Key Animation |
| Visual Effects | Hiroshi Shimizu | Key Animation |
| Production | Sander Schwartz | Executive In Charge Of Production |
| Production | Yutaka Fujioka | Producer |
| Sound | Kunio Ando | Sound Mixer |
| Visual Effects | Osamu Nabeshima | Key Animation |
| Sound | Mikio Mori | Dolby Consultant |
| Visual Effects | Hiroyuki Aoyama | Key Animation |
| Visual Effects | Noboru Takano | Key Animation |
| Visual Effects | Kazuyoshi Takeuchi | Key Animation |
| Visual Effects | Atsuko Tanaka | Key Animation |
| Sound | Vic Radulich | ADR Recording Engineer |
| Sound | Shizuo Kurahashi | Sound Effects Editor |
| Visual Effects | Hiroaki Noguchi | Key Animation |
| Visual Effects | Kuniyuki Ishii | Key Animation |
| Visual Effects | Toshitsugu Saida | Key Animation |
| Art | Nizou Yamamoto | Art Direction |
| Sound | Catt LeBaigue | ADR Recording Engineer |
| Visual Effects | Kazuhide Tomonaga | Animation Director |
| Sound | Roy Prendergast | Music Editor |
| Visual Effects | Nobuo Tomizawa | Animation Director |
| Art | Jean Giraud | Conceptual Design |
| Production | Koji Takeuchi | Associate Producer |
| Sound | Masafumi Mima | Sound Editor |
| Visual Effects | Fumio Iida | Key Animation |
| Production | Shunzo Kato | Co-Producer |
| Visual Effects | Yuichiro Yano | Key Animation |
| Visual Effects | Keiko Tomizawa | Key Animation |
| Visual Effects | Hiroyuki Horiuchi | Key Animation |
| Visual Effects | Osamu Okubo | Key Animation |
| Camera | Hajime Hasegawa | Director of Photography |
| Visual Effects | Sadahiko Sakamaki | Key Animation |
| Sound | Thomas Chase | Original Music Composer |
| Sound | Steve Rucker | Original Music Composer |
| Visual Effects | Yoshitake Iwakami | Animation |
| Visual Effects | Hiroko Kondo | Color Designer |
| Writing | Richard Outten | Screenplay |
| Editing | Takeshi Seyama | Editor |
| Writing | Jean Giraud | Story |
| Writing | Chris Columbus | Screenplay |
| Writing | Yutaka Fujioka | Story |
| Directing | Masanori Hata | Director |
| Sound | Robert B. Sherman | Songs |
| Sound | Richard M. Sherman | Songs |
| Art | Toshiro Nozaki | Background Designer |