Because you like Emmett Brown in Back to the Future

Josh Lucas just can't stop hanging around his stepsister's house. See them in Clueless.

Not even a closed door will deter this eternal optimist. See them in Frozen.

The self-described "ghost with the most" knows the ins-and-outs of specter life like no other. Just ask him. See them in Beetlejuice.

With those dearest to him dead and no one to trust, Max Rockatansky is a slightly hysterical man alone on the run in a post-apocalyptic world. See them in Mad Max: Fury Road.

Let's just say Sheldon Oberon is having an out-of-body experience like no other. See them in Jumanji.

Newt Scamander is more comfortable with animals than people, even if the animals are super-dangerous magical creatures. See them in Fantastic Beasts and Where To Find Them.

A monstrous pirate captain, Davy Jones is quite literally heartless. See them in Pirates of the Caribbean: the Curse of the Black Pearl.

Although life in a post-apocalyptic world is far from easy, Julie Grigio maintains her sense of humor. See them in Warm Bodies.

A karate master/rocket scientist/squirrel, Sandy Cheeks is the only one who can clean up the other resident's messes in Bikini Bottom. See them in SpongeBob SquarePants.

Matilda Wormwood is so smart, she taught herself how to be psychic. See them in Matilda.

Fear is a ball of nerves and a voice of caution. See them in Inside Out.

One of Freddie Mercury's songs is "We Will Rock You." And does he ever! See them in Bohemian Rhapsody.