Because you like Einar Wegener/Lili Elbe in The Danish Girl
Baloo is a fun-lovin' bear who just needs the bare necessities of life See them in The Jungle Book.
Arwen has to choose between a life of loneliness or love and inevitible death, both rather unfortunate options. See them in The Lord of the Rings.
Victor Frankenstein can create life, so he's pretty awesome if he says so himself. See them in Frankenstein.
Will Turner is an earnest, lovelorn blacksmith's assistant with an adventurous spirit. See them in Pirates of the Caribbean: the Curse of the Black Pearl.
Charlotte is ready to embrace connection in a strange place. See them in Lost in Translation.
Prim and proper Allie Hamilton was raised to follow the rules. But she's got a fiery rebellious side too. See them in The Notebook.
For Wreck It Ralph, it's not easy being the bad guy. Especially when you've been designed to destroy but really desire love. See them in Wreck-It Ralph.
The biggest nerd in high school, Bill Haverchuck is the biggest target for bullies. See them in Freaks and Geeks.
Bran Stark discovered a scandelous family secret. He swore to keep quiet but soon found himself on the receiving end of attempted murder. See them in Game of Thrones.
A scary monster on the outside, James P. Sullivan is really a softie on the inside. See them in Monsters, Inc..