As the title of this French documentary indicates, Ce Siecle a 50 Ans examines the 20th Century at its halfway point. Utilizing the archives of several European film reserves, director Denise Tua offers a fascinating mosaic of the people and events that shaped the years 1900 to 1950. Complementing the vintage film clips are three dramatized sketches, delineating the romantic customs of three different points in time. These sketches are inadequately performed, and can easily be ignored. Ce Siecle a 50 Ans both preserved and provided celluloid material for scores of future documentaries.
| Actor | Role |
|---|---|
 Pierre FresnayNarrator (voice) | Narrator (voice) |
 Sarah BernhardtSelf (archive footage) | Self (archive footage) |
 Jean CocteauSelf | Self |
 Marie DaëmsSelf | Self |
 Dwight D. EisenhowerSelf (archive footage) | Self (archive footage) |
 Catherine ErardSelf | Self |
 Joseph GoebbelsSelf (archive footage) | Self (archive footage) |
| BBernard ImbaudSelf | Self |
| SSerge LafaurieSelf | Self |
 Renaud MarySelf | Self |
| HHenri MatisseSelf (archive footage) | Self (archive footage) |
 Jesse OwensSelf (archive footage) | Self (archive footage) |
 Pablo PicassoSelf (archive footage) | Self (archive footage) |
 Geneviève PageSelf | Self |
 Jean-Paul SartreSelf (archive footage) | Self (archive footage) |
 Auguste RenoirSelf (archive footage) | Self (archive footage) |
| AAlain QuercySelf | Self |
 François PérierSelf | Self |
 Max SchmelingSelf | Self |
 Emperor Haile Selassie I of EthiopiaSelf | Self |
 George Bernard ShawSelf (archive footage) | Self (archive footage) |
| FFlorence VerdierSelf | Self |