Filmed in California (Hollywood) just after the attack against Pearl Harbor, this is the 1st naval war film made by MGM. The movie was originally based:
a) on the story A CARGO OF INNOCENCE (1938), written by the British naval officer Eric Andrew Simson (known as Lawrence ot Laurence Kirk) who served in the 1930' on the British destroyer HMS Tremendous and wrote a magazine account on how it fought as a refugee ship in the Spanish Civil War,
b) on an original story by the former U.S. naval officer, Captain Harvey S. Haislip and the British writer -former army officer in the World War I- Robert C. Sherriff: in 1917, Haislip was one of 429 crewmen rescued when the cruiser Milwaukee ran ashore near Eureka, California as it was attempting to salvage an American submarine in the California coast.
Τhe film's screenplay was written by screenwriters like the former pilot George Bruce, the former foreign & war correspondent John L. Balderston and the former reporter Herman J. Mankiewicz (who descended from Jewish emigrants from German and later helped many refugees fleeing Nazi Germany for the USA).
The movie is produced by Robert Z. Leonard & Orville O. Dull, directed by Robert Z. Leonard.