After discovering they are all dating the same same guy, three popular students from different cliques band together for revenge, so they enlist the help of a new gal in town and conspire to break the jerk's heart, while destroying his reputation.

Cady Heron is a hit with The Plastics, the A-list girl clique at her new school, until she makes the mistake of falling for Aaron Samuels, the ex-boyfriend of alpha Plastic Regina George.

Routinely exploited by her wicked stepmother, the downtrodden Samantha Montgomery is excited about the prospect of meeting her Internet beau at the school's Halloween dance.

When she learns she's in danger of losing her visa status and being deported, overbearing book editor Margaret Tate forces her put-upon assistant, Andrew Paxton, to marry her.

Recent MIT grad Matt Franklin should be well on his way to a successful career at a Fortune 500 company, but instead he rebels against maturity by taking a job at a video store. Matt rethinks his position when his unrequited high-school crush, Tori, walks in and invites him to an end-of-summer party. With the help of his twin sister an...