Summary: The crew of a submarine is trapped on the sea floor when it sinks. How can they be rescued before they run out of air? (imdb)

Poster submitted by Gauntlet

Genre: Drama

Country: UK

Directed By: Roy Ward Baker

Written By: W.E. Fairchild, Kenneth Woollard

Starring: John Mills, George Cole, Nigel Patrick, Peter Hammond, Andrew Crawford, Michael Brennan

More information at the Internet Movie Database