Kristen Stewart 'I Punched Myself In Knee'

+ Kristen in Vogue Italia! (On doing exercise and staying fit) 'I'm naturally skinny. We're all like this in my family, so I don't have to exercise a lot or go on a diet. I do all the exercise I need on set. Right now, for example, to play Snow White I never stop: I run, jump, fight with swords, horseride.. I do all kinds of stuff! You see, I've even injured myself! But it's nothing serious.'

(On her energy on set) 'It's true, I don't lack the enthusiasm. If there's something to do, I say: 'Come on, what are we waiting for? Let's do it!' Because I'm eager to start. This way of doing things helps me to always keep a high energy. I like going for new projects.'