Watch Once upon a time there was friendship on HBO Max.
Unfortunately the movie Once upon a time there was friendship is not yet available on HBO Max.
| Writing | Waldemar Sent | Screenplay |
| Sound | Václav Škvor | Sound |
| Camera | Ján Cifra | Director of Photography |
| Sound | Gerhard Auer | Original Music Composer |
| Editing | Štefánia Ryšavá | Assistant Editor |
| Production | Alexander Kuzma | Production Manager |
| Camera | Augustín Riccini | Assistant Camera |
| Sound | Štěpán Koníček | Conductor |
| Writing | Waldemar Sent | Story |
| Camera | Juraj Ježo | Assistant Camera |
| Art | Anton Krajčovič | Production Design |
| Directing | Štefan Kamenický | Assistant Director |
| Editing | Bedřich Voděrka | Editor |
| Writing | Štefan Uher | Screenplay |
| Production | Ján Tomaškovič | Production Assistant |
| Directing | Štefan Uher | Director |
