This teen horror film comes from the writer of 'Scream' and 'Scream 2'. Strange things seem to be happening around Herrington High School and a group of pupils confirm what every teenager secretly knows - that their teacher are parasites from another planet. An unlikely group of nerds, jocks and loners must fight off the extra-terrestrial menace. Starring Jordana Brewster, Josh Hartnett, Salma Hayek and Robert Patrick.