Sydney Greenstreet's final film.
The destroyer that Tracy and Stewart start their adventure on is a Fletcher Class Destroyer. The first was laid down in 1941 and the last in 1944; 175 war built. It was the first of the U.S. Navies large destroyers during World War II; it was also was the class with the largest number of examples built. Most served in the Pacific war.
The PT Boat attack on the cruiser was lifted from the film They Were Expendable