- Persky-Bright Productions
- (A P/B Vista Presentation)
- Vista
- (A P/B Vista Presentation)
- Columbia Pictures
- Columbia Pictures
- (United States, 1975)(Columbia A Division of Columbia Pictures Industries,Inc., theatrical)
- Columbia C.E.I.A.D.
- (Italy, 1975)(theatrical)
- Columbia-Warner Distributors
- (United Kingdom, 1975)(theatrical)
- Warner Columbia Film
- (Belgium, 1975)(theatrical)
- Warner-Columbia Film
- (France, 1975)(theatrical)
- Westheimer Company
- (Westheimer Co., optical effects)
- Emerald Service Company
- (production services by)
- White Sands National Monument
- (The White Sands National Monument, New Mexico, filmed on location in: courtesy of the Department of the Interior)
- The Albuquerque District Office, Bureau of Land Management, U.S. Department of the Interior
- (The Albuquerque District Office, Bureau of Land Management, U.S. Department of the Interior, with the cooperation of)
- The State of Colorado
- (The State of Colorado, with the cooperation of)
- Los Angeles Times
- (research material)
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