Keira Knightley turned heads in a green tulle Valentino gown last night Keira Knightley at 'The Aftermath' premiere Keira Knightley green vintage evening dress in Atonement (2008) , The directors orders for the famous green dress included three criteria: lightness, length and shade of green. With the scene set on The green dress which Keira Knightley wore in Atonement (2007) has been named the best of all time by InStyle Magazine. Exceeding some classics as Audrey Hepburn's little black dress in Breakfast Keira Knightley wearing a green dress created by costume designer Jacqueline Durran in the 2007 film 'Atonement' : r whatthefrockk Like the Atonement Dress. in Style of Keira Knightly Green Dress. 1920's 1930's Style Evening Dress. Prom, Evening, Wedding Dress. UK Etsy