Worst U boat film: Das Boot 2, about a (???!!!) Monsun boat, a type XXI (or so...), in Pacific waters, with japanese and german crew...Agh!
"A few weeks before the end of the war Lieutenant Commander Gerber has been ordered to sail to Japan carrying a load of Uranium oxide, which is one of the key components to build an atomic bomb, Gerber will also have to take passengers, amongst them two japanese navy officers, a fanatical military judge, and a man who is involved in the conspiracy to assasin Hitler. To make the journey even more dangerous a spy in the U-boatīs base in Kristiansand, Norway has sent a message warning the British about the U-boat." (from IMDB).
The story of the LTC Gerberīs boat is based on the true story of Wolfgang Hirschfeldīs book "U-boat Diary" although much dramatized.
Regards.
Fitzcarraldo