with Bucheim's film 'Das Boot'. In his book 'Hitlers U-Boat War' author Clay Blair states that "German submariners were delighted with Bucheims wartime art, photographs and heroic stories, but they were appalled by his post war writings and the film. They denounced him for opening the film 'Das Boot' with scenes of a wild drunken orgy at an officers club in Lorient; for the negative, defeatist, anti-military tone of the book and the film; and for the implied criticism of Donitz."

       Two U-boat skippers, Karl-Fredrich Mertens and Kurt Baberg, were so enraged by Buchheims "non-fiction" that in 1985 they published an entire book "Nein! So War Das Nicht" (No! It wasn't like that) pointing out Bucheims errors and or misleading statements.