Because you like Sam Baldwin in Sleepless in Seattle

GLaDOS will supply the food when you get together: a delicious cake. Of course, it could just be a trap so she can kill you. It’s hard to say. See them in Portal Series.

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.

Sally Albright is high maintenance who she thinks she's low maintenance. But she's still worth it. See them in When Harry Met Sally....

Stubborn, impulsive, and fun-loving, Hallie Parker is not afraid to devise some schemes to bring her family together. See them in The Parent Trap.

Cinderella will sacrifice herself to keep her family's memory alive. See them in Cinderella (Live Action).

Irene Adler has to use both her brains and her body to survive. Luckily, she's usually the most brilliant person in the room. See them in Sherlock.

Anakin Skywalker is said to be the chosen one, who will destroy the evil Sith. But he struggles with Jedi ideals as he grows in power. See them in Star Wars Series.

Princess Fiona is a damsel who doesn't need saving, but she's cursed with an embarrassing secret. See them in Shrek.

Viking Astrid Hofferson has it all: brains, brawn, and some killer braids. See them in How to Train Your Dragon.

Sarcastic and always complaining, C3PO is a droid that despite his quirks you always want by your side. See them in Star Wars Series.

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

Reckless, vulgar, loud-mouthed: that's what makes Amethyst so awesome. See them in Steven Universe.