Ride the High Country is a noted 1962 western film. It stars Joel McCrea, Randolph Scott, Mariette Hartley, Ron Starr and Edgar Buchanan.

Aging ex-marshal Steve Judd is hired by a bank to transport a gold shipment through dangerous territory. He hires an old partner, Gil Westrum, and his young protege Heck to assist him. Steve doesn’t know, however, that Gil and Heck plan to steal the gold, with or without Steve’s help. On the trail, the three get involved in a young woman’s desire to escape first from her father, then from her fiance and his dangerously psychotic brothers.

Information from http://www.imdb.com/title/tt0056412/plotsummary