Le Trou

Yes, the film is based on the 1957 novel 'The Break' by José Giovanni, which details a real 1947 prison escape attempt. The story focuses on a group of inmates at La Santé Prison in Paris who attempt to tunnel to freedom.

Jean Keraudy, whose real name was Roland Barbat, was one of the actual inmates involved in the 1947 escape and plays himself in the movie. He famously opens the film by introducing the story directly to the audience from a cafe.

Director Jacques Becker insisted on extensive realism by building incredibly accurate, custom sets rather than relying on obvious studio backdrops. He actually filmed at a working correctional facility in Paris to capture the authentic, oppressive atmosphere of French prison life.

The plot follows five long-term inmates sharing a cell who meticulously plan an escape by digging a tunnel out of the prison using handmade tools. The narrative tension heightens when prison guards unexpectedly move a new, wealthy prisoner into their cell, threatening to ruin the secret operation.