DESTINATION TOKYO ('43) became a helpful tool during WWII. It was so accurate at showing the technical details of a submarine that the U.S. Navy used the production as a training film. It was also the only serious war movie Cary Grant ever made. | Turner Classic Movies: TCM

#OTD in 1943, "Destination Tokyo" was screened for the media in the the torpedo room of a submarine. A second screening was held for sailors who gave the movie high marks for its accuracy in depecting sub operations.The film's technical advisor CDR "Mush" Morton would never see it. He was lost when the USS Wahoo (SS-238) was sunk near Japan before production was completed. | U.S. Naval Institute