A Tone of Green Polka Dot Wedding Atonement: Keira Knightley's Green Dress Clothes on film Keira Knightley's unforgettable green dress in Atonement was custom designed by costume designer Jacqueline Durran, created specifically for the film rather than by a fashion house. Inspired by 1930s bias cut evening gowns, the The Story Behind Keira Knightley's Emerald Green Slip Dress From 'Atonement' Vogue Keira Knightley wearing a green dress created by costume designer Jacqueline Durran in the 2007 film 'Atonement' : r whatthefrockk Anyone else still thinking about Keira Knightley's backless green dress from Atonement, 13 years later? At the link in bio, our style editor examines why the backless trend became an unlikely