Das Boot depicts the crew onboard the German submarine U-96 during a mission in the Atlantic Ocean and through the Strait of Gibraltar, where they fight both British destroyers and the claustrophobia of the deep sea. Director Wolfgang Petersen’s strive for realism was assured by employing the captain of the actual U-96 as a consultant. He also kept the actors indoors during the films entire 63 day shoot. By almost exclusively being told through the eyes of the crew, Das Boot is a credible and nuanced account of German submariners in battle.