The shots at the end of the film are actual file scenes taken after the surrender and you can identify a number of real U-Boats. However, the RN had a hand in assisting in filming, providing technical support, the frigate that played HMS Saltash and the target submarines.
Some of the air attack footage during the Arctic convoy was actually USN file footage from the Pacific. Still one of the greatest war at sea movies of all times though.
You cannot go wrong with the book either.
|