Ralph ThomasCast
Cast not recorded here
Plot
In World War II, the greatest threat to the British navy is the German battleship Tirpitz, and a plan involves midget submarines.
Sinekatalog’s take
Ralph Thomas's war drama, with John Mills and John Gregson, is tense and well made.Sinekatalog’s own editorial review – not a user or critic quote.
Ratings
IMDb: 6.6 / 10 (1,859 votes)
IMDb rating and vote count from the IMDb ratings dataset (October 2026). Scores change over time.