How An Opener Works (1985)
- Genre: Documentary
- Release Date: 1985-01-01
- Runtime: 0h 13min
- Language: Polski
- Production Company: Wytwórnia Filmów Dokumentalnych
- Production Country: Poland
- Director: Piotr Morawski
A portrait of a working man - Stefan Piętowski, a craftsman who, at the age of 85, sums up his professional life. In order to do so, he organizes "The History of One Working Life" exhibition.
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| Directing | Piotr Morawski | Director |
| Camera | Krzysztof Pakulski | Director of Photography |
| Editing | Krystyna Górnicka | Editor |
| Sound | Krystyna Tunicka-Palluth | Sound |
| Sound | Spas Christow | Sound |