Keira Knightleys green dress in Atonement , To assemble the wardrobe of the characters, director Joe Wright called on Jacqueline Durran with whom he had worked on the mythical film, Pride and 98 6. Keira Knightley green dress from 'Atonement' movie f Flickr 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 A dress so iconic the original went missing! , Keira Knightleys emerald silk gown in Atonement wasnt just the green dress it was the moment. Custom dyed, cut on the bias, and so delicate it tore