From the IMDB:

Director Mike Newell is using his forthcoming movie Harry Potter and the Goblet Of Fire to vent his seething mistrust of children. The 63-year-old film-maker is determined to obliterate any sense of false innocence in the magical tale, as he insists kids should be depicted in a more truthful light – as bloodthirsty maniacs. He says, “I was very anxious to break the franchise out of this goody-two-shoes feel. It’s my view that children are violent, dirty, corrupt anarchists. Just adults-in-waiting basically.”