Because you like John Keating in Dead Poets Society

Olive Hoover is an irrepressible child beauty queen (or would-be queen) who doesn't play by your rules. See them in Little Miss Sunshine.

For Jack Pearson, the best thing about having triplets is giving three times the love. See them in This Is Us.

The party never really ends with Penny Lane, a rock-worshipping groupie who is refreshingly self-aware and free-spirited. See them in Almost Famous.

A working class janitor with a world-class mind, Will Hunting is cocky, brash, and combative about his future. See them in Good Will Hunting.

Gordie Lachance never had any friends later on like the ones he had when I was twelve. See them in Stand By Me.

Mike Hannigan is a lawyer-turned-pianist who loves to tap into his kooky side. See them in Friends.

With a song always on her lips and her heart on her sleeve, Maria von Trapp is the governess every kid dreams of. See them in The Sound of Music.

Murph is inquisitive, compassionate, and stubborn, with a passion for science she shares with her dad. See them in Interstellar.

Matt Flamhaff is not too concerned about being part of the popular crowd. Too bad his best friend is. See them in 13 Going on 30 .

Christine Palmer is a great surgeon and an even better friend. See them in Marvel Cinematic Universe.

It's a race against time to develop his theory of the origins of the Universe before Stephen Hawking's body and mind give out. See them in The Theory of Everything.