Continuity mistake: In Miss Kettlewell's classroom Andy slides open a cupboard door and sees Chucky. He only opens the door about halfway, but in the next wide shot, the cupboard door is slid all the way open. (00:33:40)
Continuity mistake: In the very first shot of Miss Kettlewell reading, in the background beside the closet is a ruler leaning against the doorframe. When Miss Kettlewell walks to Andy the ruler is now leaning upright against the wall, no longer leaning on the doorframe. (00:32:40)
Audio problem: When Kyle takes the knife from the closet and pulls it out of the leather, it makes a sound like metal scraping on metal. (00:50:45)
Continuity mistake: At night when Mattson is leaving the factory, it's raining and he tries to put Chucky inside the trunk, he can't so he grabs Chucky by the face (near its eyes) in the next shot Mattson is holding Chucky by its clothes. (00:15:20)
Continuity mistake: When Joanne is showing Andy his new room, he opens the closet and Chucky falls down, the doll has its head facing the room. In the next shot, Chucky is in a different position with his head facing the closet. (00:14:25)
Continuity mistake: At the beginning of the film the facial features of the doll are sprayed on using a mask with cut out sections. There is no paint sprayed on the 'eyelashes' part of the mask, and when the mask is removed the doll has no eyelashes. Chucky, however, does have eyelashes throughout the rest of the film.
Continuity mistake: When Kyle is running after Andy against the factory, we see Andy approaching a huge truck. However Andy passes the truck several times between the shots. (01:02:20)
Continuity mistake: After Kyle takes the sock out of Andy's mouth, she places it on the bed. In the next shot it has gone. (00:29:40)
Revealing mistake: After Phil has thrown Chucky down to the basement he turns the lights off. We then see lights fading in to make it seem like light is coming from outside the window. (00:30:20)
Continuity mistake: Look at Andy's feet when he was freed when Kyle comes in through the window, he has no shoes on, but when he chases after Mr. Phil Simpson he gains a pair of shoes. (00:30:00)
Revealing mistake: In the full-screen version, a piece of Chucky's animatronic equipment can be seen bobbing up and down with him (the bottom-left corner) as he chases Miss Kettlewell in the classroom.
Continuity mistake: When Chucky pretends to be Tommy, a small drawn on mole, under the left side of the dolls' mouth is alternately there / missing. The position of the dolls' hair keeps altering as well. (00:25:00)
Continuity mistake: When Miss Kettlewell is reprimanding Andy in class for disturbing her lesson, the shot alternates from behind her to in front. During each shot change, the position of the book she clutches in her arms keeps changing. (00:33:10)
Continuity mistake: When Kyle climbs into Andy's room, she unties his hand from the skipping rope, and Andy punches Chucky, who falls down onto the floor by the side of the bed. Yet when Phil comes in, he picks up Chucky from the floor by the end of the bed. (00:29:30)
Continuity mistake: When Joanne, Phil and Andy are in the car after they have fostered him, the shots alternate from the backseat to the front, during the scene. During the shot changes Joanne's purple jumper sleeve keeps differing in how far it is rolled up. (00:09:15)
Visible crew/equipment: When in her office, Grace grabs Chucky, then Chucky stabs her twice. After he stabs her, in one shot she stumbles back, and as she does you can clearly see the head of a crewmember behind her! (00:58:40)
Continuity mistake: The toys in the back seat of Mattson's car change from when Chucky is tossed in, to when Chucky comes alive. (00:14:45 - 00:16:05)
Visible crew/equipment: When Miss Kettlewell leaves the classroom with Andy in it, as she opens and closes the door, above the door some sort of crew equipment can be seen. It is NOT anything connected to the door, as it is not seen in previous or following shots. (00:34:25)
Continuity mistake: When Miss Kettlewell is about to check the children's homework sheets, she puts her glasses on. Then when she discovers the profanity written on Andy's work, you can see her glasses hanging down by her chest. They're back on in the next shot. (00:33:35)
Continuity mistake: When Andy approaches Chucky posing as Tommy, near the foot of the stairs, the doll's freckles are faded in some shots, and more prominent in others. (00:25:00)