“I Know You’re In There” (*1/2 out of four) was a gloomy, boring horror thriller about (what else?) a possessed child, a haunted house, and (yawn) family exorcisms. A young man (Will Hurst) discovers he has a long-lost sister after their mother commits suicide and they move into her isolated home but are suddenly overtaken by paranormal activity. “The Shining”, “Poltergeist”, and “The Amityville Horror” should all be receiving royalty checks for the amount of horror movies that have ripped them off over the last year. Movies like these make you wonder if filmmakers “know” how to make anything else anymore.