The Hole French Le Trou is a 1960 French film directed by Jacques Becker. It is an adaptation of Jos Giovannis 1957 book of the same name. It was called The Night Watch when first released in the United States, but is released under its French title today. The film is based on a true event concerning five prison inmates in La Sant Prison in France in 1947. Director Becker, who died just weeks after shooting on the film had wrapped, used mostly nonactors for the main roles in the film, including one man Jean Keraudy who was actually involved in the 1947 escape attempt, and who introduces the film. It was entered into the 1960 Cannes Film Festival.
Source: Wikipedia