Company Credits
Production Companies
- Produzioni Europee Associati (PEA)
- Arturo González Producciones Cinematográficas, S.A (co-production)
- Constantin Film Produktion (co-production)
Distributors
- United Artists (1967) (USA) (theatrical) (dubbed)
- United Artists (1967) (West Germany) (theatrical)
- Nova Film (1968) (Netherlands) (theatrical)
- United Artists (1968) (Argentina) (theatrical)
- United Artists (1968) (France) (theatrical)
- United Artists Films (1968) (Finland) (theatrical) (cut version)
- United Artists (1968) (Sweden) (theatrical)
- United Films Finland (1984) (Finland) (theatrical)
- American Broadcasting Company (ABC) (1974) (USA) (TV) (broadcast premiere) (pan/scan)
- 20th Century Fox Home Entertainment (2007) (USA) (DVD)
- Sony Pictures Home Entertainment (2006) (USA) (DVD)
- Chapel Distribution (1997) (Australia) (theatrical)
- Cinema Mondo (2003) (Finland) (theatrical) (restored version)
- Filmmuseum Distributie (2009) (Netherlands) (theatrical) (re-release)
- Gloria Film A/S (2002) (Denmark) (theatrical) (re-release)
- Metro-Goldwyn-Mayer (MGM) (2003) (USA) (theatrical) (re-release)
- Park Circus (2008) (UK) (theatrical) (re-issue)
- 20th Century Fox Home Entertainment Japan (2000-2005) (Japan) (DVD)
- 20th Century Fox Home Entertainment Japan (2007) (Japan) (DVD)
- FS Film Oy (2004) (Finland) (DVD)
- MGM Home Entertainment (Europe) (2000) (UK) (DVD)
- MGM Home Entertainment (2000) (Germany) (VHS)
- MGM Home Entertainment (2004) (Germany) (DVD)
- MGM Home Entertainment (2003) (France) (VHS)
- MGM Home Entertainment (2004) (France) (DVD)
- MGM Home Entertainment (2001) (USA) (DVD)
- MGM Home Entertainment (2007) (USA) (DVD)
- MGM/UA Home Entertainment (USA) (VHS)
- MGM/UA Home Entertainment (USA) (video) (laserdisc)
- Mondo Home Entertainment (2007) (Italy) (DVD) (cut)
- Mondo Home Entertainment (2009) (Italy) (DVD) (uncut)
- Pioneer LDC (1993) (Japan) (video) (laserdisc)
- Sony Pictures Entertainment (2006) (Japan) (DVD)
- Star Entertainment (2000) (India) (all media)
- Svensk Filmindustri (SF) (2004) (Sweden) (DVD)
- Svensk Filmindustri (SF) (2009) (Sweden) (Blu-ray) (DVD)
- Twentieth Century Fox Home Entertainment (2009) (Netherlands) (DVD)
- Warner Home Video (1999) (Germany) (VHS)
- Warner Home Video (1999) (Japan) (DVD)
- Warner Home Video (1994) (USA) (VHS)
- Warner Home Vidéo (1996) (France) (VHS)
Other Companies
- American Movie Classics (AMC) (special thanks) (2003 extended English-language version) (as AMC)
- Casa Antonelli (costumes) (as Antonelli)
- Chapman/Leonard Studio Equipment (camera cranes) (uncredited)
- Cineteca Nazionale C.S.C (special thanks) (2003 extended English-language version) (as Cineteca Nazionale, Italy)
- Dolby Laboratories (special thanks) (2003 extended English-language version)
- Elios Film (interiors)
- Eureka Edizioni Musicali (music publishers) (as " Eureka Edizioni Musicali")
- Film Foundation, The (special thanks) (2003 extended English-language version)
- Hollywood Title (end titles by) (2003 extended English-language version)
- Intersound (audio restoration and remastering services) (2003 extended English-language version) (as Intersound Inc., Los Angeles)
- Orchestra Cinefonica Italiana (orchestra)
- Tani (props)
- Technicolor Rome (special thanks) (2003 extended English-language version)
- The Studios of International Recording (recording effected at)
- Western Costume Company (costumes) (as Western Costume Co.)
