Tàu Ngầm U-571

The caption before the end credits, detailing the fact that the Royal Navy captured the first Enigma machine, was only added after an outcry in Britain, where it was believed that Hollywood was trying to claim the credit for the Americans (whose forces captured no German Naval Enigma material until 1944).

At the beginning of the movie when the U-571 is under depth charge attack from the British destroyer, the order is given to surface the sub due to damage. When they surface, the Captain reports "All clear!" and orders lookouts to the bridge. What happened to the British destroyer that was just attacking them? It should have still been nearby and would have seen them surface.

At least one version of the theatrical release contained no subtitles for the opening scene aboard the German submarine. This was possibly to increase dramatic effect, placing emphasis on the acting and visuals rather than the dialogue.

Edited into In Enemy Hands (2004)