Revealing mistake: When the bleached dead girl is lying on the table, you can see her breathing. (00:13:45)
Revealing mistake: When all the police cars pull up and skid, outside Carl's flat, you can see skid marks already on the ground in front, from previous takes. (00:28:10)
Revealing mistake: When Novak is being tortured, you can tell that his chest is a prop as he never bleeds in the close-up shot of where the scissors push into his skin.
