Factual error: The Memphis Belle's 25th and final combat mission did not result in her returning to base badly crippled as shown in the film. The propaganda and morale boosting value of her completing her combat life was so important to the U.S. Army Air Force that her final assignment was an uneventful "milk run".

Factual error: Noted by my father, a WW2 RAF mechanic - They hold a huge dance in the hangar at night, and Dennis leaves to walk to the Memphis Belle through the hangar doors, which are wide open. The whole flight line, tarmac and hangar are bathed with light - on a US Air Force base in East Anglia during the height of the German bombing offensive. Haven't they heard of the blackout? Why not just paint a big fluorescent sign on the runway saying 'Please Drop Bombs Here'?

Continuity: After the Memphis Belle drops its bombs and scores a direct hit on its target you see the Memphis Belle lift up and turn right with the bomb bay doors closed. The next scene the bombadier says "okay, bomb bay doors, closing" and you see the doors close again.

Continuity: When the bottom turret is shot out, Rascal is hauled into the ship, and although the turret is completly destroyed, when the Belle lands, the bottom turret is visible and intact again.