Continuity mistake: During the whack-a-robot game, a big chunk of the broken robot lies on the counter, but it disappears a shot later.
Continuity mistake: When the Grand Witch throws the lectern, it lands 6 meters away from the chairs. When the shot changes, it's barely 2 meters away (note the wooden planks on the floor).
Continuity mistake: Parker filled a beer pitcher and there was very little foam. After leaving from behind the bar, the beer pitcher was half foam. (00:20:50)