Company Credits
Production Companies
- Warner Bros
- Wildwood (as Wildwood Enterprises)
Distributors
- Warner Bros (1976) (USA) (theatrical)
- Warner Bros. (1976) (Netherlands) (theatrical)
- Warner-Columbia Film (1976) (France) (theatrical)
- National Broadcasting Company (NBC) (1980) (USA) (TV) (broadcast premiere)
- Warner Home Video (1986) (USA) (VHS)
- Warner Home Video (2001) (Netherlands) (VHS)
- Warner-Columbia Films (1976) (Finland) (theatrical)
- Argentina Video Home (Argentina) (DVD)
- Argentina Video Home (Argentina) (VHS)
- Mainostelevisio (MTV3) (1983) (Finland) (TV)
- TV3 (1988) (Finland) (TV)
- Varus Video (all media)
- Warner Bros. Entertainment Finland Oy (2006) (Finland) (DVD)
- Warner Home Video (2006) (Germany) (DVD)
- Warner Home Video (2011) (Germany) (Blu-ray) (DVD)
- Warner Home Video (2006) (Netherlands) (DVD)
- Warner Home Video (USA) (DVD)
- Warner Home Video (USA) (all media) (laserdisc)
- Warner Home Vídeo (Brazil) (DVD)
- Warner Home Vídeo (Brazil) (VHS)
- Yleisradio (YLE) (1996) (Finland) (TV)
Other Companies
- DeForest Research (research) (as de Forest Research, Inc)
- National Park Service, The (various locations courtesy of)
- Pacific Title (titles)
- Washington Post (acknowledgement)
