The rating for this movie sucks!
The only reason this is rated R is because of the F-word. Otherwise, I don't think there's anything too objectional or anything that a ten year old couldn't handle. Sure, it gets tense and a little gross (chicken eating scene), but similar films like The Goonies and Monster Squad got pretty crazy and they weren't rated R. Once again proof that the ratings system sucks.
Don't talk back to Darth Vader. He'll getcha.