10. Jennifer Lawrence
Jennifer Lawrence burst onto the scene in a big way this year thanks to her star-making role in Winter's Bone. The indie film wasn't a box office hit, but it did make her an award season darling and earned her nominations at every show including the Oscars! From there she appeared in The Beaver and X-Men: First Class, though her biggest headline came when she scored the highly sought-after role of Katniss Everdeen in the film adaptation of The Hunger Games, which is out next year.