Continuity: Halloran's parachute gets stuck in the trees and leaves him hanging at least 10 meters above the ground. However, in the following close-up shots he opens his belt and lands on the ground without any effort.

Factual error: The lid Halloran removes before the jump out of the plane is much too small. They wouldn't have made it through the opening with their parachutes strapped on.

Factual error: Before Halloran and Sellinger take off for their mission Sellinger arrives on the airfield in an American army car but which has right-hand steering.

Continuity: In the first scene at Margaret's home she is wearing black sandals when she is sitting at the table. When she drops the teapot the close-up of her feet shows some clumsy brown slippers.

Continuity: When Halloran sets the barn on fire to distract the Germans he lights up some straw with a match. All of a sudden you see flames flickering up at various places which could not be caused by the fire he made.

Factual error: Before they jump off the plane Halloran should at least have checked if Sellinger has his parachute strapped on properly, knowing that the other guy has absolutely no experience.