- Oakmont Productions
- (presents)
- United Artists
- (Finland, 1969)(theatrical)
- Kommunenes Filmcentral (KF)
- (Norway, 1969)(theatrical)
- United Artists
- (United Kingdom, 1970)(theatrical)
- United Artists
- (United States, 1970)(theatrical)
- United Artists
- (Sweden, 1970)(theatrical)
- The Bowie Organisation
- (The Bowie Organisation, special effects)
- Air Registration Board
- (the producers gratefully acknowledge the co-operation and assistance in the United Kingdom of)
- Board of Trade
- (the producers gratefully acknowledge the co-operation and assistance in the United Kingdom of)
- City of Liverpool
- (the producers gratefully acknowledge the co-operation and assistance in the United Kingdom of)
- Hawker Siddeley Aviation Limited
- (Hawker Siddeley Aviation, Hatfield, the producers gratefully acknowledge the co-operation and assistance in the United Kingdom of)
- L. J. Hillman Engineering
- (the producers gratefully acknowledge the co-operation and assistance in the United Kingdom of)
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