Bon Voyage is a 1944 short French language propaganda film made by Alfred Hitchcock for the British Ministry of Information.
Although the film is short (26 minutes), it uses two radically different interpretations of the same events, a technique not unlike that used by Akira Kurosawa in Rashomon (1950), Errol Morris in The Thin Blue Line (1988), and Fernando Meirelles in Cidade de Deus (2002).
Later, Hitchcock told François Truffaut "I felt the need to make a little contribution to the war effort, and I was both overweight and overage for military service.
Hitchcock soon began development of Bon Voyage, which he described as "a little story about an RAF man who is being escorted out of France through the Resistance channels.
At the same time, the RAF man learned that the young French girl who'd helped them, and had spotted the Pole as a spy, had been killed by him.