Based on the best-selling 1951 novel by naval officer Nicholas Monsarrat, The Cruel Sea takes a deep dive into the Battle of the Atlantic.

Omitting some of the book’s most grim moments, the 1953 film is a documentary-style account of life on a British Royal Navy warship during World War 2.

The focus is from the viewpoint of British naval officers and seamen who served in convoy escorts as they came into contact with Nazi Germany’s U-boats.

Starring Jack Hawkins, Donald Sinden, Denholm…