A Tone of Green Polka Dot Wedding The Iconic Green Dress from Atonement Wonderful Keira Knightley in green dress Atonement, Joe Wright ( 2007) Often considered "the most beautiful gown in motion pictures", this green dress was designed by Jacqueline Durran and worn by Keira Knightley in the 2007 movie Atonement. Happy Saint Patrick's Day #stpatricksday # 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 Love how the model is standing right next to a female statue.