- Associated British Picture Corporation (ABPC)
- (Associated British Pictures Corporation Limited, presents)
- Angel Productions
- (A Daniel M. Angel Production)
- Warner-Pathé Distributors
- (United Kingdom, 1962)(Warner-Pathe Distributors Ltd, released through, theatrical)
- Kontinental-Film
- (Norway, 1963)(theatrical)
- Warner Bros. Television
- (United States, 1965)(TV)
- 9Gem
- (Australia, 2023)(TV)
- Network Distributing
- (United Kingdom, 2015)(DVD)
- Bowesmoor Kennels
- (Hank trained by)
- Britannia Royal Naval College Dartmouth
- (the producers wish to express their thanks to: for their most helpful co-operation in the making of this film)
- The Admiralty
- (The Admiralty, the producers wish to express their thanks to: for their most helpful co-operation in the making of this film)
- The Captain, Officers and Men of the U.S.S. Springfield
- (The Captain, Officers and Men of the U.S.S. Springfield, the producers wish to express their thanks to: for their most helpful co-operation in the making of this film)
- The Navy Department, Commander, 6th Fleet
- (The Navy Department, Commander, 6th Fleet, the producers wish to express their thanks to: for their most helpful co-operation in the making of this film)
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