Making of the cinematographic shooting of "Premier de Cordée" directed by Louis Daquin in the Mont-Blanc massif. In 1943. Alain Pol films the risky adventure of filming in the high mountains with a team of seventy people. The images of the making-of reveal the technical constraints encountered by the actors and technicians: falling rocks, crossing glaciers and long approach walks at altitude to the filming locations. Six actors and technicians will also be injured and the main role - that of Pierre - will be reassigned to André Le Gall following a bad fall by Roger Pigaut.
| Actor | Role |
|---|---|
 Yves FuretNarrator | Narrator |
 Irène CordaySelf | Self |
 André Le GallSelf | Self |
 Maurice BaquetSelf | Self |
 Jacques DufilhoSelf | Self |
 Louis DaquinSelf | Self |
 Philippe AgostiniSelf | Self |