Seeing as we're slightly overexcited about Halloween, here's a round-up of the most ear-piercing howls ever to be committed to celluloid, from E.T. to Jurassic Park. Go ahead, turn up the volume and annoy the office. 

Featured screams, from start: Home Alone, E.T., Psycho, Jurassic Park, Wayne's World, The Craft and Who Framed Roger Rabbit.