From pr-inside.com:

British actress KEIRA KNIGHTLEY is desperate to take her style cues from BJORK and HELENA BONHAM CARTER - but doesn’t yet have the confidence to emulate their outlandish tastes.
The Atonement star is keen on being in the limelight for her choice of outfits and cites the unique fashion sense of singer Bjork and actress Bonham Carter as her style icons.
She says, “I don’t think I’m confident enough yet to be used to being in the limelight because of my style.”
“But I loved the swan dress Bjork wore to the 2001 Oscars. I’d love to have the courage to do the same.” And Knightley reserves high praise for Bonham Carter: “Helena wears whatever she wants and looks amazing.”