Revealing mistake: In the scene where the women are laying in their bunks in the work camp and one lady is describing what she heard about the horrors of other concentration camps, at the end one woman puts up her hands to her face. You can see her fingernails are neatly manicured, something you'd think wouldn't be possible in a forced labor camp.
Revealing mistake: In the scene where the woman engineer is executed by Goeth's henchman, watch closely. First, her hair goes from being clear of her forehead, before she is thrown on the ground, to hanging in a fringe, so as to conceal the makeup appliance that replicates her being shot. Then, when she falls, a tube can be seen attached to her leg from an appliance on the ground.