(at around 45 mins) Marlene Dietrich descends the staircase of her saloon and arrives at the bottom wearing a different dress than the one she wore at the top.
At about 0:30:00 during the first confrontation in front of the mine, Harry Carey fires three shots from a single-shot rifle without reloading.
When Glennister (John Wayne) and his men prepare to blow up the bank and steal the safe, they disguise themselves with what appeared to be coal dust to blacken their faces, but in a subsequent scene when Glennister visits Cherry Malotte (Marlene Dietrich) and her maid Idabelle (Marietta Canty), he's wearing traditional black-face makeup.