4. Kristen Stewart in "The Runaways"
Let's be real: Not all of Kristen Stewart's roles are, er, strong female leads. (*Cough*Bella Swan is a whiner*cough*.) But her turn as real-life rocker Joan Jett in the musical biopic "The Runaways" was so fierce, all is forgiven.
MTV via 500DaysofRK
Oh and Bella is not a whiner.