Warner Brothers PicturesA scene from “Where The Wild Things Are.”“Where the Wild Things Are,” a film based on Maurice Sendak’s classic children’s book, hit theaters on Friday. The book is loved by 4- and 5-year-olds, but this PG-rated movie is probably too scary for them. Child development experts debate whether, when it comes to the big screen, live-action films are easier for preschoolers to identify with and enjoy than complex animation. But the live-action G-rated movie seems increasingly ra