Other mistake: Many times in the film, it's obvious that Chucky is inactive and not alive, yet supposed to be. When he falls to the floor beside the photocopier, for instance, it's obvious he is off and inactive. (00:58:40)
Other mistake: No warehouse would stack their products in a labyrinthial way. They would be stacked in rows. (01:05:30)
Other mistake: When Andy is in the Chucky Factory at the end, the boxes momentarily knock him out, as the camera is on him, you can see that his eyes are blinking when they're shut.
Other mistake: At the beginning, we see the workers attaching Chuck's head to his body. But there's no place for the wires that would operate the dolls, seeing as how the workers believe he's just a normal doll.