Because you like Joan Wilder in Romancing the Stone

Shrek is a nasty-on-the-surface ogre with a heart of gold and an earful of wax. See them in Shrek.

WALL-E is a quirky little romantic robot cleaning the wasteland known as Earth. See them in WALL-E.

Jenna Rink is physically 30 but emotionally 13. She has a better excuse than most. See them in 13 Going on 30.

A cheerful alien, E.T. just wants to phone home. See them in E.T. the Extra-Terrestrial.

Tracy Turnblad's got rhythm, and she's determined to share her dance moves with the world. See them in Hairspray.

Margo loves mysteries so much that she becomes one. See them in Paper Towns.

A fearless scientist, Jane won't let a mere shipwreck stop her. See them in Tarzan.

Hannah Baker is a buoyant spirit broken by the cruelties of high school. See them in Thirteen Reasons Why .

R is sweet for a zombie. See them in Warm Bodies.

High school is Hell, so Allison Reynolds spends her time giving herself tattoos with ballpoint pens and shaking dandruff out of her hair. See them in The Breakfast Club.

Ponyboy Curtis is a "Greaser" on the surface, but he's a sensitive poet underneath. See them in The Outsiders.

Usagi Tsukino may look like a lazy teen, but when Usagi conjures up her alter ego and calls her Sailor Scout team, no villain stands a chance. See them in Sailor Moon.