Trivia

Although the film was another 3-D film by director Andre De Toth, he only had one eye and would never be able to see the result of the process. The other 3-D film he directed was "House of Wax."

Originally photographed in 3-D, but often only exhibited in flat prints after its initial first and second run engagements.

In a separately filmed trailer, Randolph Scott talks to the audience about the film and about 3-D.

Ernest Borgnine had never ridden a horse, but lied to the director about his horseback skills. (One can see him riding awkwardly down a hill in preparation to rob a coach.) At the end of the scene, Lee Marvin "tsk tsk"-ed him in disgust. But Randolph Scott handed Ernest a pair of spurs and said, "Here, kid, you just earned 'em."

One of the film's working titles was "I Ride Alone."