Celebrity Geek Girls: Anna Kendrick, Mila Kunis & More

Not only is Kristen Bell a fangirl -- she voiced a character in both 'Assassins Creed' videogames -- but she also loves fanboys. "What I like about nerdiness, geekiness, is it doesn’t really matter what you’re into -- it just means you’re not a follower." Oh, and she also really loves sloths.