Goof
I must have seen this movie a million times, but never noticed this goof till tonight and had to zoom in to see it. Ok, When the kids first enter the waxwork and they stop to look at the guy with the axe leaning over the kid with the glasses (one who looks like older brother in Napoleon dynamite. They are not supposed to move but if you watch closely during the close up of the axe wielder
you'll notice the guy's arm moves slightly and tried to correct itself. It's minor but funny as hell.