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Slumber Party Massacre III (1990) Poster

Goofs

Continuity 

Throughout the movie, the light in the foyer is always on, but through the window in the front door there's no light on.
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As the pizza girl walks along the street, she walks past the same pick-up truck three times.
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When Maria is cleaning up the water on the floor the rag is red in one shot and then blue in the next.
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The amount of blood on the killer's shirt after Janine's death changes.
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In the shot before the killer cuts Diane with his drill, a bloody wound can be seen on her left hip. After the killer has officially cut her, she has the same wound on the same hip.
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When playing volleyball on the beach and Juliette goes to speak to Ken, the shot cuts back to the volleyball match and Juliette can clearly be seen playing. In the next shot, she is walking back towards the game after having spoken to Ken.
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Crew or equipment visible 

As Janine reenters the living room, a woman in a white T-shirt and jeans can be seen in the room behind her.
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After Sarah is killed, her friends are seen driving back home. A camera van is reflected on the side of the car, following it.
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Revealing mistakes 

When Duncan and Frank are murdered, their bodies are left on the floor of the foyer. In subsequent shots, the bodies have been removed and don't reappear until Jackie, Maria, and Diane head down to the basement.
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There's no contact information on the For Sale sign in front of Jackie's house.
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See also

Trivia | Crazy Credits | Quotes | Alternate Versions | Connections | Soundtracks

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