Factually incorrect, totally implausible.

Rating: Null/10 (11 July 2003)

!!! Spoilers ahoy!! This film does not do justice to the people who experienced WW2. It is typical hollywood trashy film. How the Americans could even think that they can pass an old clapped out US sub for a state of the art German U boat just by sticking a badge on it I do not know. It insults the intelligence of both the Americans and the Germans. Sending out a crew in that is surely condemning the crew to a watery grave.

Radar. When the disguised American sub approached the real U boat would it not appear on the radar? And would not radio contact follow? And therefore code words used by the German crew? ANd therefore would not the Americans be sussed out way before they actually got close enough to discuss the quality of French porn? This is war, and in war certain practices are followed. They crew are well drilled. And why was there not a Nazi salute in the entire film?
The American crew ran the real German U boat like as if it were their own. I fail to understand how a German engineered boat would in any way be similar to and American one. Yet we are to belive that just by translating a few labels a foreign crew can run a sub, and not just run it but use it in battle? Very doubtful.
The scene where the American soldier gets shot point blank by the Nazi, another example of stupidity. 1 bullet shot at point blank range and the victim is felled instantly. Shot dead. Not 4.
I could go on but you get the drift. Other than that the film is watchable as the story is quite good.