Cast & crew
The Unknown Singer (1931)
Directed by Viktor Tourjansky Written by Henri Decoin, Henri Diamant-Berger
Cast
| Lucien Muratore | Claude |
| Simone Cerdan | Hélène |
| Jim Gérald | Ernest |
| Simone Simon | Pierette |
Crew
| Curt Courant | Director of Photography |
| Pierre-Gilles Veber | Adaptation |
| Viktor Tourjansky | Adaptation |
| Henri-Georges Clouzot | Adaptation |
| Henri Decoin | Screenplay |
| Jean-Henri Blanchon | Dialogue |
| Viktor Tourjansky | Director |
| Henri Diamant-Berger | Story |