Because you like Sid in Ice Age

We're all puppets. Dr. Manhattan is just a puppet who can see the strings. See them in Watchmen.

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

Faced with inequality, Gale Hawthorne has a rebellious spirit that only grows. See them in The Hunger Games .

A secret smoker, Margot Tenenbaum has plenty more secrets where that came from. See them in The Royal Tenenbaums.

Jenko was top dog in high school. Now he's bottom of the pack in the police academy. See them in 21 Jump Street.

An inquisitive archaeologist, Professor Hershel Layton knows a gentleman leaves no puzzle unsolved. See them in Professor Layton.

Small in stature, Clara Oswald has a big appetite for adventure. See them in Doctor Who.

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.

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.

Holly Golightly spends so much time trying to be other people's dream girl, she doesn't really know what kind of girl she actually is. See them in Breakfast at Tiffany's.

Sheldon Cooper is brilliant in every way except, well, interacting with any human being. See them in The Big Bang Theory.