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Continuity mistake: When Barb shows Nica the pamphlet for the assisted living centre, after Nica says "What is this?", the way Barb is holding her hands on her knees changes instantly between cuts. The teacup in front of Barb also rotates slightly between cuts.

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Continuity mistake: Sarah's mouth goes from open to closed to open again between cuts after she takes Chucky out of the box, and Chucky says, "Hi, I'm Chucky! Wanna play?"

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Continuity mistake: When Sarah pulls Chucky out of the box, the amount of packing peanuts stuck to Chucky's head/hair changes between cuts.

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Continuity mistake: When Nica's mother shuts the door after the package arrives, she rotates about 45 degrees towards Nica between cuts.

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Continuity mistake: When the delivery man hands Nica the gizmo, the sign for the package, it rotates 180 degrees between shots. (You can really tell from the direction the antenna is pointing.)

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Continuity mistake: When Nica opens the door for the delivery man, she's still opening it, but then the shot cuts and she's no longer opening it and is instead rolling forward towards the driver in her wheelchair.

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Visible crew/equipment: When Nica rounds the corner to answer the door in the opening scene, as she gets close to the door, you can see the shadow of the cameraman on her back for a moment. (It's right after she says "Well, I'm used to that.") You can also VERY faintly see it on the door a few seconds later.

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Continuity mistake: In the previous films, the Good Guy dolls always say "Hidey-Ho!" before their trademark "Ha-ha-ha!". For some reason, this movie omits that.

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Deliberate mistake: In the unrated cut, when Jennifer/Tiffany is dragging the dead maid, you can see the "dead" maid is actually holding her head a few inches above the ground so her face doesn't rub on the floor. You can even see her subtly raise and lower her head as Jennifer/Tiffany grabs her and then stops.

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Revealing mistake: Jennifer/Tiffany's maid reacts to being hit with the doll before it makes contact with her.

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Continuity mistake: After Glen kills Chucky and begins crying, the blood spatter on his face changes slightly between cuts.

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Revealing mistake: When Glen cuts Chucky apart, you can pretty obviously see where the fabric on Chucky's clothes has been pre-cut and then "blended together", so they will "break apart" easily when the ax hits. The ax also doesn't always hit exactly where the limb "cuts off".

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Visible crew/equipment: When Joan shows up to Jennifer's house and Chucky says, "It's that nosy bitch, Joan," for a brief instant, you can see what appears to be a puppeteer's hand behind Chucky's right shoulder. It's only onscreen for about 1 second, but if you know where to look, it's obvious.

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Audio problem: After Chucky ties Jennifer up and Tiffany catches him trying to feel her up, Jennifer starts screaming various variants of "Help me!", but her mouth movements don't match her words.

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Continuity mistake: Before Tiffany kills Redman, he has a plate loaded with food. We then see him take a few bites in close-up as the camera circles around him, and then it cuts to his plate, and it's now essentially empty. The bites he's taking are not big enough to totally empty his plate in the time seen.

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Continuity mistake: When Redman hears Tiffany running behind him and turns around, he places his fork down on his plate twice between cuts.

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Other mistake: When Tiffany runs behind Redman, it's far too obvious that it's a person in a costume. Tiffany suddenly appears to be nearly a foot taller than she should be.

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Deliberate mistake: When Tiffany is reading the self-help book for recovering addicts, there's a closeup of a page. While the headline for the chapter makes sense, the body text is completely unrelated and is about corporate work culture. (Likely just some generic free text the prop department copy/pasted into the book prop.)

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Other mistake: When the acid falls on Pete Peters, it falls straight down and soaks his entire head, but only dissolves the skin on the left side of his head.

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Revealing mistake: The "semen" that drips off the turkey baster is painfully obviously CGI. It doesn't quite match the movement perfectly and looks incredibly "flat".

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