Here are the 10 least realistic cowboy movies of all time, according to IFC.com:
10. The Terror Of Tiny Town (1939)
09. Shanghai Noon (2000)
08. Undead Or Alive: A Zombedy (2007)
07. Cowboys and Aliens (2011)
06. Wild Wild West (1999)
05. Westworld (1973)
04. Back To The Future Part III (1990)
03. The White Buffalo (1977)
02. Billy The Kid vs. Dracula (1966)
01. El Topo (1970)
10. The Terror Of Tiny Town (1939)
09. Shanghai Noon (2000)
08. Undead Or Alive: A Zombedy (2007)
07. Cowboys and Aliens (2011)
06. Wild Wild West (1999)
05. Westworld (1973)
04. Back To The Future Part III (1990)
03. The White Buffalo (1977)
02. Billy The Kid vs. Dracula (1966)
01. El Topo (1970)