Morning Departure

Morning Departure released as Operation Disaster in the United States is a 1950 British naval drama film about life aboard a sunken submarine, directed by Roy Ward Baker, and starring John Mills and Richard Attenborough. It is based on a stage play of the same name by Kenneth Woollard, which had also been shown as a live TV play by the BBC both in 1946 and 1948. It was the feature film debut of Michael Caine.

When the shore base becomes aware that Trojan is overdue, surface rescue vessels are sent out to investigate. The captain of the submarine, Lieutenant Commander Peter Armstrong John Mills, sensibly provides an indication of their position to these vessels by expelling a quantity of oil which rises to the surface. Following standard escape procedure, a diver is sent down with an air line while everyone prepares for the rescue. Armstrong selects the first four for release they escape safely without incident, and are picked up on the surface. The eight remaining crew assume there are plenty of breathing sets for them all to escape successfully. However, the captain discovers that all but four have been destroyed in the blast. This means the final four will have to remain under water until a full salvage operation can be carried out, which may take a week or more.Armstrong assembles the others to draw lots through a pack of cards he deals out, to decide who goes and who remains. Two, the cook AB Higgins James Hayter and the first lieutenant, Lieutenant Manson Nigel Patrick, with the lowest cards, select themselves to stay behind along with Armstrong. The top three, to go first, also select themselves with high cards. Of the other two, there is a tie, both knaves, between Stoker Snipe Richard Attenborough and E.R.A. Marks George Cole. On losing a redeal, young Snipe goes berserk with fear and has to be physically restrained. Armstrong approaches Marks and asks if he will forfeit his place for Snipe, sensing difficulties if Snipe is left behind. Marks agrees. ........

Source: Wikipedia