What is the name of this movie?

I saw a movie a few years ago and I can only remember one specific part of it. At some point in the movie, a young boy either runs away from home or is kidnapped (I think he is kidnapped). Either way, he is taken to a really nice house by a young couple who turn out to be child-molesters that videotape young kids, and then somebody shows up at the house and shoots the couple and rescues the kid. It is driving me crazy! This is a modern movie, I would say no less than 8 years old.