I have really enjoyed being a boy

Rooney Mara speaks on her makeover in The Girl with the Dragon Tattoo
Rooney Mara made a drastic transformation for her role as Lisbeth Salander in The Girl with the Dragon Tattoo, a transformation she will have to live with till at least 2015 as the Millennium trilogy movies roll out.
"Before [Dragon Tattoo], I dressed much girlier," she told US Vogue where she featured on the December cover."A lot of blush-colored things. Now I literally roll out of bed and put on whatever is there. I have really enjoyed being a boy this last year."
Rooney also reveals the drastic transformation she was given by top makeup artist Pat McGrath, costume designer Trish Summerville and hairstylist Danilo to get into the character of Lisbeth. “I was instantly inspired,” the makeup artist who transformed Mara for the role, Pat McGrath, told Vogue. “It’s like in fashion, when you get a girl who has one of those haunting faces that you can do absolutely anything with....”
Holed up in a tiny studio for two days with Fincher and Mara, McGrath created about 26 different looks. “We went from the white-powdered sick-clown makeup to stitches in the face all the way to greasy, bloody eyes. I instantly knew how I could make her character so different. And then once the hair was cut in that mad shape, I was like, Well, the eyebrows have got to go. And in the end, it would look now and it would look new.”
Rooney said hairstylist Danilo "cut my hair, shaved the sides, bleached the eyebrows, then dyed my hair black. Then we went and did the piercings—all in one day."