Revealing mistake: The white ball on the back of Ken's Santa Claus hat reaches to about the bottom of the white band, but occasionally is lower and sometimes even touches his shoulder. The slight variation in the amount of his forehead that extends below the hat does not appear to be able to account for the ball's reach relative to Ken's neck/shoulder. Also, the location of the seam on the left side of the white band moves higher or lower. Ken is never seen adjusting his hat. (00:16:17 - 00:16:39)
Revealing mistake: When Archie swung the fire extinguisher in front of the woman, it did not look like the fire extinguisher was close enough to strike the woman's body, let alone knock her out. Also, when Archie came out and closed the door, he would have been walking where the woman's body was on the floor. (00:34:05)
