Continuity mistake: After Warren (Samuel L. Jackson) asks everybody to stand against the wall, he orders them to throw away the snowshoes hanging there. They throw them right to the front of the fireplace. In the next shot Warren takes some steps ahead and the snowshoes are in the background: they changed their position.
Continuity mistake: In the scene after they pick up Mannix in the stagecoach, Warren has his gun pointed at him because they don't trust him. Warren is somewhat relaxed with his arms crossed while keeping the gun pointed toward Mannix, but in the next shot he is right up in his face with the gun, and in the next shot he's relaxed again.