Factual error: The film was released in 1958 but depicts a 1943 World War II mission in the Pacific by a US submarine capatain played by Clark Gable and his first officer played by Burt Lancaster. In two separate scenes the crew listens to a "Tokyo Rose" broadcast on radio and the background music is "Kiss Me Once, Kiss Me Twice, It's Been a Long Long Time" by Sammy Cahn and Jule Styne. The song was not released until September 1945, one month AFTER the end of the war in the Pacific in August 1945. The song was famous for celebrating returning troops and therefore also makes no sense in the context of 1943.
Continuity mistake: Every time we see the Nurka fire a torpedo, regardless of whether the order was "fire one," "fire two," or even "fire five" or "fire six," the torpedo is always seen leaving exactly the same tube.
Plot hole: As the destroyer homes in on the Nerka, the sonar operator gives a running commentary of its actions. His last message is that he hears splashes of depth charges. As close as they exploded, he wouldn't be hearing anything else, because he kept the headphones on.