Goofs

One of Wiley Escoe's physical traits is a full set of gold teeth. When he first meets Nat's gang, he's shown with normal teeth in the close-up, then back to gold teeth in subsequent shots.

At the end of the fight between Trudy and Mary, Mary throws Trudy onto the ground between two dye vats, with Trudy facing the red vat on the right and her legs next to the shotgun on the floor. In the next couple of shots, she's facing the other direction, facing the orange vat and clear of the shotgun.

When Nat rode into Redwood after the bank robbery and Rufus looked out the window at him, Rufus was standing in the center of the window. In the next zoom shot from behind, he was on the side.

At around the 38 minute mark when Bass Reeves takes a drink, he picks it up with his right hand and finishes it with his right hand.

After Rufus is released from his cell on the train, he orders the gang to kill all the soldiers in the train car, but one. He then walks towards the exit while men and shell casings fall all around him.

All of the weapons fired in the train car are revolvers. They do not eject casings automatically when fired. Some of the weapons appeared to be cap & ball pistols, which have no casings at all.

When the two gangs finally clash, and Mary takes a revolver off of a fallen rival, the first few rounds are fired without her pulling the hammer back between each shot, while the last few she's seen cocking the hammer before firing.

If the revolver is a double action/single action you can fire it both ways like Mary did.

At around 52 mins, when Rufus Buck says Wiley was loyal once, a faint buzzing sound can be heard, probably from a phone left on the set.

At around the 1:43 mark, as Jim Beckwourth is preparing for his gunfight with Cherokee Bill, a close-up of Jim loading his revolver shows cartridges with the Starline Brass headstamp. Starline Brass was founded in 1972, 100 years or so after this movie takes place.