What is the name of this movie?

Question by Austins Granny: What is the name of this movie?
I am trying to remember this movies name. There was a weird looking guy who kidnaps a teenage girl so he can have a prom I think. Well on the previews it show that her mom, dad, and brother have hand tools and are going to kill him. The mom says something about making a smoothie out of body parts. I am not sure this is just what I remember off of the Commercial.

Best answer:

Answer by Kaija
Otis
http://www.youtube.com/watch?v=jxzil0qqnNA

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