The Sundowners - Robert Preston, Robert Sterling, Chill Wills, Cathy Downs, John Litel and Jack Elam. Directed by George Templeton (1950)

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Western 84 minutes

A rash of cattle rustling leads to a range war, centered on the disputed grazing rights to a fertile canyon. Hostilities escalate with the arrival of a gunman, who disrupts both sides in the conflict.
 

https://en.wikipedia.org/wiki/The_Sundowners_(1950_film)

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