Submarine films

The submarine film is a subgenre of war film in which the majority of the plot revolves around a submarine below the ocean's surface. Films of this subgenre typically focus on a small but determined crew of submariners battling against enemy submarines or submarine-hunter ships, or against other problems ranging from disputes amongst the crew, threats of mutiny, life-threatening mechanical breakdowns, or the daily difficulties of living on a submarine.

The genre plays on the psychological tension of the submarine's crew and their unseen enemy, signified by a soundscape that may feature explosions, the ping of sonar, the creaking of the submarine's hull under extreme pressure, the alarm ordering the submarine to dive, and the threatening sound signatures of a destroyer's propeller or of an approaching torpedo.

Some 150 films have been made in the submarine genre between 1910 and 2010, variously depicting submarines in relatively realistic stories about World War I, World War II or the Cold War, or purely fictional and fantastic scenarios.