I enjoy "Sink the Bismarck!" enough to rewatch it every year or so since seeing it in theaters back in 1960. Initially on television, then VHS, and finally DVD about 17 years ago. Like “Battle of the Bulge,” this film uses altered or fictionalized characters—particularly among the English Admiralty and planners—for dramatic effect rather than historical accuracy. I’ve always found it entertaining, but it isn't as historically precise as "Pursuit of the Graf Spee," also known as "Battle of the River Plate." For example, Kriegsmarine Admiral Lutjens wasn't a Nazi and didn't deliver speeches aboard the Bismarck to rally Germans behind the Nazi cause. In fact, he was under investigation at the time of his death for employing Jewish domestic staff, and Kriegsmarine officers were prohibited from political affiliations beyond the required "Loyalty Oath" to Adolph Hitler—a condition agreed upon with the military establishment in exchange for disbanding the S.A. ("Brown Shirts"). Also, accurate historical figures like Admiral Tovey are glossed over, and certain engagements involving the Bismarck contain significant errors. Ultimately, the Bismarck, whose superstructure was a blazing wreck due to more than 400 rounds, mainly from Rodney’s 16-inch guns at close range during the final two hours, sank. The Bismarck's rudders, rangefinders, fire control radar, and internal communications were out of commission by then, prompting an order to scuttle the ship, which simply sped up its inevitable demise due to increasing flooding. It wasn’t a series of torpedoes fired at the last moment that caused the Bismarck to sink. Furthermore, H.M.S. Hood was never refitted or rebuilt like other capital ships that were over 20 years old because of the war and the shortage of dry dock space. While the Bismarck and Hood might have seemed evenly matched, one was built before lessons were learned at Jutland in May 1916 regarding British vulnerability to plunging fire due to thin deck armor, while the Bismarck was the newest battleship constructed without being constrained by the Washington or London Treaties, which limited displacement and therefore armor. Despite this, the Bismarck sustained significant damage from several 14-inch shells that hit its bow during its engagement with the Hood, fired by the Prince of Wales. It also began experiencing “progressive flooding” and leaking fuel tanks from the start, leading to a loss of speed and seawater washing over its forecastle, which steadily reduced its combat effectiveness. It's an interesting film to watch, but some details and key individuals were fabricated or misrepresented using composite characters. Incidentally, due to "blast damage" from its own main batteries, Rodney was permanently damaged and restricted to several bombardments of the Normandy coast three years later, primarily serving as a base of operations for the British Admiralty. It was en route to the U.S. for a long overdue major refit when it was recalled following the sinking of the Hood and never regained its ability to operate independently after the Bismarck action, though it wasn't directly hit (due to blast damage from its own guns).

Source on TMDB