Knightley auctions Atonement dress

Actress Keira Knightley is auctioning the much-hyped green dress she wore in Oscar-nominated movie 'Atonement' to raise funds for a children's charity.

The gown the 22-year-old's character wears in the romance's pivotal library sex scene is up for sale on the Clothes Off Our Back Foundation website. The non-profit organisation hopes to raise charity cash from the auction.