- American International Pictures (AIP)
- Meteor Joint Venture
- Palladium Productions
- Shaw Brothers
- (Sir Run Run Shaw Presentation)
- Ambassador Film Distributors
- (Canada, 1979)(theatrical)
- American International Pictures (AIP)
- (United States, 1979)(theatrical)
- Columbia-Warner Distributors
- (United Kingdom, 1979)(theatrical)
- Columbia-Warner Filmes de Portugal
- (Portugal, 1980)(theatrical)
- Fox-Stockholm Film Distribution
- (Sweden, 1979)(theatrical)
- California Institute of Technology (Caltech)
- (the California Institute of Technology, special thanks to: for their cooperation and assistance)
- Controlled Demolition
- (Controlled Demolition, Inc., special thanks to: for their cooperation and assistance)
- Griffith Observatory
- (Griffith Park Observatory, special thanks to: for their cooperation and assistance)
- International Alliance of Theatrical Stage Employees (IATSE)
- (I.A.T.S.E.® affiliated with A.F.L.-C.I.O., this picture made under the jurisdiction of)
- Kress Editorial Services
- (post production)
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