The Atonement Dress. Designed by Jacqueline Durran, the slinky green dress worn by Keira Knightley in 'Atonement' was voted the best film costume of all time. It's sexy, elegant and powerful all at once - totally deserving of the accolade.
Keira Knightley, Cecilia Tallis - Atonement Costume Design by Jacqueline Durran The dress, which is precisely the way it was described in the novel, deserved an Oscar for bewitching beauty. The film? The book otoh is fascinating.