- J. Arthur Rank Organisation
- (The J. Arthur Rank Organisation, presents)
- Jay Lewis Productions
- (A Jay Lewis Independent Production)
- General Film Distributors (GFD)
- (United Kingdom, 1950)(General Film Distributors Ltd., released through, theatrical)
- Eagle-Lion Film
- (Sweden, 1950)(theatrical)
- Kommunenes Filmcentral (KF)
- (Norway, 1950)(theatrical)
- Universal Pictures
- (United States, 1951)(Universal-International, theatrical)
- American Broadcasting Company (ABC)
- (United States, 1956)(network premiere, TV)
- Boulting Brothers
- (The Boulting Bros., by arrangement with)
- D&P Studios
- (logo)
- The Admiralty
- (The Admiralty, technical advisor, by kind permission of)
- The Admiralty
- (the Admiralty, the producer gratefully acknowledges the co-operation and facilities given by, in the making of this film)
- The Officers and Men of His Majesty's Submarines
- (the Officers and men of H.M. Submarines, the producer gratefully acknowledges the co-operation and facilities given by, in the making of this film)
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