The Movie Timeline - be obsessive, be very obsessive
U-571 - timeline
Friday 9th May: Enigma machine and coding documents captured from U-111 by HMS Bulldog and HMS Aubretin of the 3rd Escort Group.
April: A U.S. submarine crew intercept a disabled German U-boat to capture a top secret Nazi decoding machine. (Atlantic Ocean)
Friday 30th October: Short weather cipher captured from U-559 by HMS Petard.
Sunday 4th June: Enigma machine and coding documents captured from U-505 by U.S. Navy Task Force 22.3.