Trivia

During the making of this film, Jack Nicholson told Harry Dean Stanton that he should basically not do anything, and let the wardrobe do the acting for him. Dean Stanton has stated in interviews that this particular piece of advice really solidified his approach to acting.

Most of the vigilante posse were played by members of a local rodeo.

Rupert Crosse lied about his ability to ride a horse so he could be cast in this movie.

Shot back to back with The Shooting (1966) and in the same locations with many of the same cast and crew.

Millie Perkins wore a wig in this film.