Goofs

In the stampede sequence, when the stunt performer doubling for Dean Martin dives under the buckboard, his hat falls off. Switch to the close-up of Dean Martin grabbing the rear axle and the hat is back on his head.

In the church scene when The Rev. Jonathan Rudd meets Nick Evers, the Reverend collects four hymnals from the benches, placing the spine of the books in his right hand. The books then flip over with the spines in his left hand. At the end of the conversation, the stack of books flip back over with the spines in his right hand.

When Van Morgan and the Reverend Rudd are shooting at the windmill, they empty their guns. The next scene shows them reloading both weapons. The revolvers had swing out cylinders. Later in the gunfight in town when they reload their pistols, they are now using Colt Peacemakers that have a loading port to the right side of the cylinder.

When Van and George get off the stagecoach, they walk to the back of the coach and stop to look at the town. As they do so, the shotgun rider from the coach walks behind them to the luggage area and begins to take down the bags. When the camera angle changes to a closer shot, the shotgun rider again walks from the front of the coach behind them and starts taking the bags down again.

When Van Morgan is playing poker in the opening scene, he has a shirt on with two pockets that button down. The next morning after he crawls into town after being hit on the head the night before, he has on a shirt with one pocket.

The windmill is near the edge of a cliff that is hundreds of feet high and far above the water table, which would be some distance below the bottom of the canyon.

A black man would not have been allowed to work as a bartender for white people in the 19th century.

The lynch takes place on March 1, 1880, but people wander around in summer clothes that night. Given that Colorado has a harsh climate, it's a too early date for it. There may even be snow on the ground.

The clothing worn in the film is not period correct. This includes men's shirts which button fully down the front (not worn until the 1920s), pants with belt loops (again 1920s) and cowboy hats which were not only not in style, but that weren't even manufactured during that era.

The race relations shown in the film were more like those of the late 1960s when the film was made, rather than the 1880s setting.

Despite most of the men during the 1880s having facial hair, the film shows surprisingly few men who do. Being clean shaven in eras before running water was difficult and the custom was for most men to have full beards and mustaches.

The women in the film have hairstyles which are clearly set using hairspray. Hairspray was not commonly available (nor even invented) until after WWII.

All of the characters have perfect, or nearly perfect, dental work. Considering that modern dental practices only became common and affordable in the 1950s, this would not be possible.

Al Dana refers to himself as a "simple town marshal" but the sign outside his office says he is a U.S. Marshal.