Broderick Crawford was a heavy drinker during the shoot but remained sober on the set. He and Glenn Ford went on booze binges every night and could barely remember the previous evening they spent together.
Despite his reputation as the "fastest gun alive," Temple states emphatically that he's never drawn on a man. That would put him at a significant psychological disadvantage to Harold, who shoots to kill every time. Harold also fans his gun three times, usually a desperation measure because fanning makes it difficult to steady the gun on the target. Glenn Ford, along with John Doucette, who is also in the picture, was a legitimate fast draw with a sidearm.
Glenn Ford at first demanded that Russ Tamblyn's choreography not be included in the film. But at the premiere, the audience noticed that the choreography, performed by Russ Tamblyn, was written into the credits. They asked why there was no choreography in the movie and the studio eventually put it back.
Glenn Ford spent many hours training to draw a revolver, and even trained with his own son in his garden. According to Glenn Ford's son, the result was excellent.
In the barn dance scene, you can easily see the barn floor is made from 4x8 ft sheets of plywood which were not made standard in the USA until 1928 and of course a farmer would never have installed expensive plywood as a barn flooring. Plywood was known right after the Civil War in the US but most was used in making curved furniture and some in ship building.