Because you like Yelena Belova in Marvel Cinematic Universe

Even the smallest person can change the course of the world, if he's brave enough. See them in The Lord of the Rings.

Buttercup is a farm girl turned princess who'd do anything to have her old life back. See them in The Princess Bride.

A wildly brilliant detective, Sherlock Holmes can figure out everything except how to interact with other human beings. See them in Sherlock.

Princess-turned-General Leia Organa is a sharp, fearless royal who gets herself into trouble and fights her way out of it. See them in Star Wars Series.

Percy Jackson is an ordinary student thrust into the world of myth come alive. See them in Percy Jackson & The Olympians: The Lightning Thief.

Puss In Boots is a suave, honorable ladies man/cat who's not above playing cute to get you to let down your guard. See them in Shrek 2.

If you died and came back to life, and then died more times and came back, you might stop battling evil mutants. Not Jean Grey. See them in X-Men Series.

Sophisticated and aloof, Darcy couldn’t care less about marriage, despite women throwing themselves upon him with wishes of matrimony. See them in Pride & Prejudice.

Scott Pilgrim's superhero suit is just a video game t-shirt and sweatbands. But this slacker is brave enough to fight all his girlfriend's evil exes. See them in Scott Pilgrim vs. the World.

Where Ash comes from, food and shelter pay for themselves. Even as a penniless vagrant, he is able to pursue his dream of becoming a Pokémon Master See them in Pokemon.

A powerful dragon-hunting warrior, Dovahkiin is destined for great things. See them in The Elder Scrolls V: Skyrim.