The stagecoach with the fancy scroll-work painting and large yellow rear wheel brake also appears in La furieuse chevauchée (1955).
The small pistol shown near the beginning of the film appears to be a Remington Model 95 Double Derringer, which indeed fired the .41 short cartridge. The original cost was eight dollars, and the company made 132,000 of them from 1866 to 1935, a remarkable 70 year production run for a firearm.
This was Charles Bronson's fifth credited film role (as Charles Buchinsky).
Warner Bros.' last feature length film shot and intended for in 1.37:1 .
Many contemporary reviewers questioned if this film was supposed to be satire or a serious Western. Some critics consider this to be a thinly-veiled commentary on the anti-communist witch hunts and Hollywood blacklist of the time.