40 dědečků (1964)
- Genre: Animation
- Release Date: 1964-06-26
- Runtime: 0h 8min
- Production Company: Krátký film Praha – Studio kresleného a loutkového filmu Praha
- Production Country: Czechoslovakia
- Director: Václav Bedřich
- Writer: Václav Bedřich
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| Sound | Štěpán Koníček | Original Music Composer |
| Visual Effects | Milan Klikar | Animation |
| Visual Effects | Antonín Bureš | Animation |
| Sound | František Černý | Sound |
| Visual Effects | Věra Kudrnová | Animation |
| Directing | Václav Bedřich | Director |
| Visual Effects | Věra Marešová | Animation |
| Production | Josef Kotík | Production Manager |
| Writing | Václav Bedřich | Screenplay |
| Art | Miroslav Štěpánek | Art Designer |
| Visual Effects | Zdeněk Smetana | Animation |
| Editing | Zdena Navrátilová | Editor |
| Visual Effects | Zdenka Skřípková | Animation |
| Writing | Jan Hostáň | Story |
| Crew | Jindřich Vodička | Dramaturgy |
| Camera | Zdena Hajdová | Director of Photography |
| Production | Zdenka Deitchová | Production Manager |
| Editing | A. Pudilová | Editor |
| Visual Effects | Bohumil Šejda | Animation |