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.
In the trailer and DVD menu; at Regina's house, the Plastics listen to the radio and ask Cady if she knows who sings this song, Regina's mom brings drinks, the Plastics find the Burn Book.
The Plastics walk down the mall, Cady and Janis secretly wave to each other; (repeats) Dance scene at the Spring Fling; Cady, Janis and Damien are friends again; Aaron and Cady kiss.