- Carillon Films
- (A Betty Box Independent Production for Carillon Films)
- General Film Distributors (GFD)
- (United Kingdom, 1950)(theatrical)
- Columbia Pictures
- (United States, 1951)(Columbia Pictures Corporation, theatrical)
- Kommunenes Filmcentral (KF)
- (United Kingdom, 1951)(theatrical)
- Gaumont
- (France, 1952)(Gaumont-Distribution, theatrical)
- Eureka Entertainment
- (United Kingdom, 2008)(DVD)
- D&P Studios
- (logo)
- Police and Municipal Authorities in Liverpool
- (the Police and Municipal Authorities in Liverpool, the producers gratefully acknowledge the co-operation extended to them by)
- Police and Municipal Authorities in Newcastle-on-Tyne
- (the Police and Municipal Authorities in Newcastle-on-Tyne, the producers gratefully acknowledge the co-operation extended to them by)
- Police and Municipal Authorities in the Lake District
- (the Police and Municipal Authorities in the Lake District, the producers gratefully acknowledge the co-operation extended to them by)
- Port of London Authority
- (the Port of London Authority, the producers gratefully acknowledge the co-operation extended to them by)
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