Admiral Lutjens wasn't an ardent Nazi, for one. In fact, he refused to give the Nazi salute. And in 1938 he was one of a mere handful of naval flag officers who protested in writing to the Commander-in-Chief of the navy, Admiral Raeder, of the anti-Jewish Kristallnacht pogroms.
The Bismarck didn't sink any British destoyers during those atatcks.
The Bismarck [i]did[/i] fire on HMS [i]Sheffield[/i], when the shadowing cruiser got in too close.
Captain Jonathan Shepard, the RN officer who planned the tracking down and destruction of the Bismarck (played by Kenneth More), is a fictional character.
There are plenty more errors in the film, both inaccuracies and omissions.
The cruisers [i]Norfolk[/i] and [i]Suffolk[/i], as well as the damaged battleship [i]Prince of Wales[/i], continued to shadow [i]Bismarck[/i] to the end. In fact, [i]Norfolk[/i] was brought into the final battle.
There's a lot that the film got right, too. And it certainly captured the determination of the British to track down and "Sink the Bismarck" in the aftermath of [i]Hood[/i]'s sinking.
It would be nice to see a remake that corrects the errors, portrays Lutjens correctly and includes a few things that weren't known at the time when the film was produced (such as that an American was in the Catalina - we were neutral at the time) and how the British had broken the German naval code.