When some very creepy things start happening around school, the kids at Herrington High make a chilling discovery that confirms their worst suspicions: their teachers really are from another planet! As mind-controlling parasites rapidly begin spreading from the faculty to the students' bodies, it's ultimately up to the few who are left – an unlikely collection of loners, leaders, nerds and jocks – to save the world from alien domination.
Elenco: Jordana Brewster , Elijah Wood , Clea DuVall , Laura Harris , Josh Hartnett , Shawn Hatosy , Salma Hayek , Famke Janssen , Usher Raymond , Robert Patrick , Piper Laurie , Christopher McDonald , Bebe Neuwirth , Jon Stewart , Daniel von Bargen , Jon Abrahams , Summer Phoenix , Susan Willis , Pete Janssen , Tina Rodriguez , Danny Masterson , Wiley Wiggins , Harry Jay Knowles , Donna Casey , Louis Black , Eric Jungmann , Chris Viteychuk , Jim Johnston , Libby Villari , Duane Martin , Katherine Willis , Mike Lutz , Douglas Aarniokoski .