Ida Lupino hired Sam Peckinpah to work on her series "Mr. Adams and Eve (1957)" after she found him living in a shack behind her property. He paid her back by casting her in this film some years later.
Gene Hackman was originally going to play the Joe Don Baker role, but Steve McQueen wouldn't agree to his salary demands and vetoed the casting.
The yellow dog that you see in the movie is the grandson to Spike the dog from the movie "Old Yeller (1957)."
Preston and Lupino play the parents of Junior Bonner, but both were born in 1918, making them just twelve years older than McQueen.
Joe Don Baker and Sam Peckinpah reportedly did not get along whilst filming. Baker had this to say on Peckinpah:
"I didn't care for Peckinpah at all. He was one of those little guys who tries to bully big guys and he almost got his ass whipped for trying to do it to me. Every time I was going to throttle Peckinpah, Steve McQueen would come over and calm me down like a brother would."
"I didn't care for Peckinpah at all. He was one of those little guys who tries to bully big guys and he almost got his ass whipped for trying to do it to me. Every time I was going to throttle Peckinpah, Steve McQueen would come over and calm me down like a brother would."
Sam Peckinpah: for one fleeting shot, passing through the Palace Bar in the film. He appears immediately after Barbara Leigh's friend asks for "Three double bourbons" just before Steve McQueen asks her to dance.