- Anglo-EMI Film Distributors
- (United Kingdom, 1972)(theatrical)
- MGM-EMI Distributors
- (United Kingdom, 1972)(MGM - EMI Distributors Ltd., released through, theatrical)
- DLS Film
- (Netherlands, 1973)(theatrical)
- Minerva Film AB
- (Sweden, 1973)(theatrical)
- Paramount Pictures
- (United States, 1973)(theatrical)
- Cinemobile Systems
- (locations, uncredited)
- EMI-MGM Elstree Studios
- (EMI - MGM Elstree Studios Borehamwood, England., re-recorded at)
- Ford Motor Company
- (The Ford Motor Company., the producers gratefully acknowledge the assistance of: )
- Illinois Central Railroad
- (The Illinois Central Railroad., the producers gratefully acknowledge the assistance of: )
- The Alabama Great Southern Railroad Co.
- (the producers gratefully acknowledge the assistance of: )
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