Bad Education - Rotten Tomatoes
Alma movie: The Faculty (1998)

It's the late '90s and just about everywhere you looked, movies and TV shows were depicting just how tough it was to be a teenager. And perhaps none had it tougher than the students of Herrington High School, where a parastic alien has posessed the entire student body, save for the school's six most attractive students. They band together to figure out how to fight back against the already-posessed faculty, who are hellbent on spreading the parasite all over the world.