- Cinemagic Visual Effects
- (United States, 1978)(theatrical)
- Gold Key Entertainment
- (United States, 1978)(syndication, TV)
- VCI Home Video
- (United States, 1984)(VHS)
- Retromedia Entertainment
- (United States, 2001)(DVD)
- Image Entertainment
- (United States, 2004)(DVD)
- All Media Productions
- (All Media Productions, Baltimore, Maryland, we are grateful to the following companies and individuals for their assistance and cooperation in the making of this motion picture:)
- Baltimore County Office of Central Services
- (we are grateful to the following companies and individuals for their assistance and cooperation in the making of this motion picture:)
- Century Studios
- (Century Studios, Inc., Dallas, Texas, we are grateful to the following companies and individuals for their assistance and cooperation in the making of this motion picture:)
- City of Baltimore Police Department
- (The Baltimore City Police Department, we are grateful to the following companies and individuals for their assistance and cooperation in the making of this motion picture:)
- E.U.E. Opticals
- (EUE Opticals, process photography)
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