Because you like Jay Gatsby in The Great Gatsby
Dolores Umbridge keeps her villainy hidden (albeit poorly) behind a sheen of sugary pink politeness. See them in Harry Potter Series.
Jenna Rink is physically 30 but emotionally 13. She has a better excuse than most. See them in 13 Going on 30.
It turns out the girl of your dreams just might have dreams of her own. See them in (500) Days of Summer.
Self proclaimed, Fat Amy, likes horizontal running and mermaid dancing. Important skills, one could argue. See them in Pitch Perfect.
It turns out Dracula's son Alucard has some pretty severe daddy issues. See them in Castlevania.
Ellen Ripley defines the word "badass." When she's not leading her crew on an interstellar voyage, she's slaying terrifying creatures. See them in Alien.
All the world's a stage, and Missy Piggy's never one to give up the spotlight. See them in The Muppet Movie.
A kind and funny valedictorian, Gwen Stacy likes to make out with Spider-man when her homework's done. See them in Marvel Cinematic Universe.
Tidus is upbeat, carefree, and desperate not to become his father. See them in Final Fantasy Series.
Ariel knows there's a whole other world above the sea, but exploring it comes at a big price. See them in The Little Mermaid.
Nemo is a small fish in a vast ocean, but he dreams of seeing it all. See them in Finding Nemo.