Company Credits

Production Companies

• Rafran Cinematografica (for)
• Euro International Film (EIA) (for) (as Euro International Films)
• San Marco (uncredited)

Distributors

• Euro International Film (EIA) (1971) (Italy) (theatrical)
• United Artists (1972) (Japan) (theatrical)
• C.B. Films S.A. (1972) (Spain) (theatrical)
• Les Artistes Associés (1972) (France) (theatrical)
• Nova Film (1972) (Netherlands) (theatrical)
• United Artists (1972) (Argentina) (theatrical) (as Artistas Unidos)
• United Artists (1972) (UK) (theatrical) (dubbed)
• United Artists (1972) (USA) (theatrical) (dubbed)
• United Artists (1972) (West Germany) (theatrical)
• Kommunenes Filmcentral (KF) (1972) (Norway) (theatrical)
• United Artists (1972) (Sweden) (theatrical)
• American Broadcasting Company (ABC) (1980) (USA) (TV)
• MGM/UA Home Entertainment (1987) (USA) (VHS)
• Image Entertainment (1990) (USA) (video) (Laserdisc)
• MGM/UA Home Entertainment (USA) (VHS) (Circa 1990s)
• MGM/UA Home Entertainment (1996) (USA) (video) (laserdisc)
• Chapel Distribution (1997) (Australia) (theatrical) (new 35mm print reconstructed version)
• Warner Home Video (2003) (Germany) (DVD)
• MGM Home Entertainment (2005) (Germany) (DVD)
• MGM Home Entertainment (2005) (Netherlands) (DVD) (special edition)
• Mondo Home Entertainment (2007) (Italy) (DVD)
• Leone Film Group (2013) (Italy) (Blu-ray) (DVD)
• 20th Century Fox Home Entertainment (2014) (USA) (Blu-ray) (video) (as 'Duck, You Sucker')
• Layons Multimedia (2014) (Spain) (Blu-ray) (DVD) (as 'Agáchate, Maldito!')
• MGM Home Entertainment (2014) (Germany) (Blu-ray) (DVD) (as 'Todelmelodie')
• MGM Home Entertainment (2015) (France) (Blu-ray) (DVD) (as 'Il était une fois... la révolution')
• Rank Filmes de Portugal (1972) (Portugal) (theatrical)
• Skouras Films (1972) (Greece) (theatrical)
• United Artists Corporation (1982) (India) (theatrical)
• 20th Century Fox Home Entertainment (2014) (Germany) (Blu-ray) (DVD)
• Eureka Entertainment (2019) (UK) (Blu-ray)
• Kino Lorber (2018) (USA) (Blu-ray)
• Leone Film Group (2010) (Italy) (all media)
• Leone Film Group (2017) (Italy) (Blu-ray)
• Opção (Brazil) (VHS)
• Rai 3 (2016) (Italy) (TV)
• Warner Home Video (1982) (West Germany) (VHS)

Special Effects

• E. & G. Bacciucchi (explosions) (as Bacciucchi)

Other Companies

• Tirelli Costumi (costumes) (as Tirelli)
• Pompei (costumes)
• Nathans (costumes) (as Nathan)
• Western Costume Company (costumes) (as Western Costume)
• Nino Lembo (jewels)
• Cimino (set)
• Rancati (set) (as Rancati)
• Rocchetti (wigs)
• E. & G. Bacciucchi (arms) (as Baciucchi)
• Eastmancolor (negative)
• Dino de Laurentiis Cinematografica (studios) (as De Laurentiis)
• N.I.S. (synchronization) (as Nis Film)
• C.D. (dubbing collaboration)
• Edizioni Bixio S.A.M. (music editing and recording) (as Bixio-SAM)
• International Recordings (music re-recording)
• Orchestra Sinfonica della U.M.R. (orchestra)
• Cinevox Records (original soundtrack published by) (as Cinevox-Record)
• Motion Picture Association of America (MPAA) (approval certificate: code number 23218)
• MGM/UA Home Video (VHS package design) (uncredited)