William Holden and Don Taylor star in this classic Second World War drama directed by Billy Wilder. After two American prisoners are killed trying to escape from the notorious German camp Stalag 17, the blame for their betrayal falls upon the cynical, self-serving Sergeant Sefton (Holden), whose dealings with the enemy isolate him from his fellow inmates. But does Sefton's disinterest in team bonding and group morale necessarily mean he is the traitor in their midst?

A group of medics (Stephen Boyd, Raquel Welch, William Redfield, Arthur Kennedy and Donald Pleasence) and a submarine are miniaturised and injected into the bloodstream of a top Czech scientist, who was shot while defecting, in order to carry out delicate, life-saving surgery. Travelling though his body is hazardous, but far more dangerous is the suspicion that one of them is a traitor. They race against time to perform the surgery and escape from the body before they return to their full size. The film won Oscars for Best Cinematography and Best Editing.