Because you like Dom Cobb in Inception

A good-natured and academically minded superhero, Dan Dreiberg can still get his hands dirty in a fight. See them in Watchmen.

Kumar Patel is always high, always hungry for sliders. See them in Harold & Kumar Go To White Castle.

Ava may just be the perfect woman. So long as she can pass a Turing test. See them in Ex Machina.

Told her son will one day save the world, Sarah Connor dedicates her life to training him to do just that. See them in The Terminator.

This thrill-seeking driver lives by a very particular moral code. He stands by his word and he's loyal to a fault. See them in Drive.

Though she can seamlessly flit between glamorous identities, Sydney Prosser is more vulnerable than she pretends to be. See them in American Hustle.

Whether he’s hacking or dodging a bullet, Neo has a poker face that never drops. And it doesn’t hurt that he’s prophesied to be "The One" to save humanity. See them in The Matrix.

Maya Lambert is an obsessive intelligence officer with tunnel vision leading toward Osama bin Laden. See them in Zero Dark Thirty.

A powerful mob boss, Vito Corleone is always making offers people can't refuse. See them in The Godfather.

Mark Zuckerberg has achieved everything he's ever wanted, and he's proving to the world how brilliant he is. But happiness eludes him. See them in The Social Network.

It's certainly easier to get great footage of crimes when you can guarantee they'll happen. See them in Nightcrawler.