This is pretty cool of her.

 ....

Studio heads reportedly want to enlarge Knightley's bosom in the photos, but the actress, 23, put her foot down.

"She has insisted that her figure stay in its natural state," an insider said. "She is proud of her body and doesn't want it altered."

....

 

http://www.huffingtonpost.com/2008/07/28/keira-knightly-refuses-br_n_115272.html

Too f__kin right. Why doesn't Hollywood just use the same person, because it seems being who you are isnt allowed. You have to fit into a series of pre-requisites. No wonder weak-minded teenage girls are chopping themselves up and sticking bits on with this sort of pressure.