Because you like Andie Walsh in Pretty in Pink

The party never really ends with Penny Lane, a rock-worshipping groupie who is refreshingly self-aware and free-spirited. See them in Almost Famous.

Strong-willed Norah Silverberg isn't willing to be the goody bag at anyone's pity party. See them in Nick and Norah's Infinite Playlist.

A soulful bass player, Nick O'Leary can't stop sending breakup CDs to his ex. See them in Nick and Norah's Infinite Playlist.

Sam Montgomery works hard, but her evil stepmother makes sure her efforts don't pay off. See them in A Cinderella Story.

Olive Hoover is an irrepressible child beauty queen (or would-be queen) who doesn't play by your rules. See them in Little Miss Sunshine.

Josh Lucas just can't stop hanging around his stepsister's house. See them in Clueless.

Intelligent Adele is soft spoken yet brimming with emotion. See them in Blue is the Warmest Color.

Claire Standish is a popular, perfect princess who's deeper than she seems. See them in The Breakfast Club.

A suave manipulator, Sebastian Valmont is valiantly fighting off a developing conscience. See them in Cruel Intentions.

Stubborn, impulsive, and fun-loving, Hallie Parker is not afraid to devise some schemes to bring her family together. See them in The Parent Trap.

Warm and caring, Kitty Forman acts like a mom towards all of her kids' friends. See them in That '70s Show.