There was this made-for-TV movie I saw on the Disney channel once, maybe ten or so years ago, about a mummy who wakes up in modern day New York or something, and he befriends this group of kids. Early in the movie, a few of the kids are watching a slasher movie in the theater, and in that movie this guy is cleaning dishes in his kitchen when the villain busts down the door and attacks him. The guy drops a knife into the sink, and it gets caught in the garbage disposal blade-up, spinning around like a drill. The slasher grabs the guy's hair and starts forcing his face down into the sink. Then it cuts to a close up of the kids, the movie-guy screams, and the theater is bathed in red light from the screen.
Pretty violent for Disney. It still makes me cringe thinking about it.