One of the great WWII submarine movies. Robert Mitchum is the clever, hardboiled American destroyer captain who fights with brilliance but no pleasure. Curd Jurgens is the clever, hardboiled German u-boat captain who’s sick of war and contemptuous of the Nazis. The two hunt each other, outwit each other, finally destroy each other’s ships and save each other’s lives. A pretty perfect parable of Wirtschaftswunder-era Germany’s relationship with the United States.