Because you like Janis Ian in Mean Girls

For the sake of science, Kurisu Makise will persevere no matter how deep into the dark secrets of the world she finds herself. See them in Steins;Gate.

An All-American football player, a ping pong star, and a freakishly determined runner, Forrest Gump has a ton of stories to tell. See them in Forrest Gump.

Suzaku Kururugi defeats enemies with his flashy but deadly jump kicks. But he's willing to sacrifice himself for peace. See them in Code Geass.

For Sly Cooper, stealing isn't just about the haul. It's also about the journey. See them in Sly Cooper.

Lyra Belacqua is prone to getting in trouble, but she's also clever enough to get out of it. Most of the time. See them in The Golden Compass.

Daxter is half otter, half weasel, all snark. See them in Jak and Daxter.

Judge Dredd is less a man and more a living manifestation of justice. See them in Dredd.

Amy Townsend rarely wakes up in the same bed twice. See them in Trainwreck.

Smart and sensitive Sam Winchester tried to escape the family business, but ghosts have a way of haunting you. See them in Supernatural.

Dory is more than a little forgetful, but she'll always remember to have your back. See them in Finding Nemo.

Emmet Brickowski is so upbeat it's not even human. Everything is AWESOME! See them in The Lego Movie.

Tyler Gage is going to have to step up soon on the dance floor. Otherwise, it's back to janitorial work. See them in Step Up.