A husband and wife have been married for 50 years. For her birthday, the husband asks the wife what she wants for her birthday present. She replies that she wants a divorce. The wife's divorce announcement sends the entire family into chaos.
Unfortunately the movie What a Wonderful Family! is not yet available on Disney Plus.
| Directing | Yoji Yamada | Director |
| Sound | Joe Hisaishi | Original Music Composer |
| Editing | Iwao Ishii | Editor |
| Production | Hiroshi Fukazawa | Producer |
| Art | Tomoko Kurata | Art Direction |
| Production | Junichi Sakomoto | Executive Producer |
| Camera | Masashi Chikamori | Director of Photography |
| Writing | Yoji Yamada | Screenplay |
| Writing | Emiko Hiramatsu | Screenplay |
| Art | Takuya Hisano | Assistant Art Director |
| Sound | Kazumi Kishida | Sound |
| Directing | Emiko Hiramatsu | First Assistant Director |
| Lighting | Koichi Watanabe | Gaffer |
| Art | Yukio Yuzawa | Decorator |
| Production | Takakazu Aiba | Line Producer |
| Sound | Yukio Hokari | Sound Effects |
| Visual Effects | Issei Oda | VFX Supervisor |
| Production | Hitoshi Iwata | Line Producer |
