Continuity mistake: The sheriff of Morris Flats suspects Adam of being a bandit and puts him in jail. The window of Adam's cell has four vertical bars, but when the "knight" comes to talk to Adam from outside the cell window, the window has five vertical bars.
Continuity mistake: When Adam goes after Howard, he doesn't have his jacket on. When they sing "Endless Road," he is wearing his jacket again.
Continuity mistake: In The Beginning of the movie, Adam goes from wearing a black shirt to a yellow jacket after he fights the man that stopped the couple on The Wagon.
Continuity mistake: When Ben comes in the house he's carrying his coat. When he passes Adam he doesn't have it. When he goes into Hoss' room he's got it in his hand again.
Continuity mistake: When Lothario Larkin is visiting the girl he left at the altar, (Nancy I think) the scene opens, showing Lethario's carriage horse with a feed bag on. Moments later as the two are sitting together, the side of the horse is behind them and it turns its head into view, but there is no feed bag.
