Dive into the suffocating depths of a Nazi submarine with this cult classic that transforms tedium and dread into pure cinematic gold. Wolfgang Petersen's masterpiece follows the crew of a WWII U-boat as they navigate claustrophobic corridors, mounting paranoia, and the constant threat of annihilation. Featuring powerhouse performances from Jürgen Prochnow, Herbert Grönemeyer, and Klaus Wennemann, this gripping war drama captures the psychological toll of underwater warfare like nothing else.