Cast & crew
Błąd w rachunku (1989)
Directed by Andrzej Chrzanowski Written by Wojciech Bieńko
Cast
| Henryk Machalica | Profesor Muha |
| Katarzyna Walter | Dorota |
| Piotr Machalica | Tomasz |
| Janusz Bukowski | Docent |
| Barbara Sołtysik | Docent |
| Andrzej Malec | Doktor |
Crew
| Andrzej Piontek | Camera Operator |
| Andrzej Chrzanowski | Director |
| Krzysztof Nawrot | Sound |
| Michał Kubiak | Camera Operator |
| Wojciech Bieńko | Screenplay |
| Seweryn Krajewski | Music |