Fifty Fathoms Deep is a 1931 American pre-Code adventure film directed by Roy William Neill starring Jack Holt, Mary Doran and Richard Cromwell.

A woman creates a great rift between old friends: an experienced older diver, and his younger protege.

She is aboard his boat when an accident occurs.

The two divers must salvage the costly boat before it sinks.

This 1930s drama film-related article is a stub.