Keira Knightley wearing a green dress created by costume designer Jacqueline Durran in the 2007 film 'Atonement' : r whatthefrockk SO. The story behind this green dress is that I reached out to @emma.in.lace some months ago knowing that I wanted to celebrate my youtube one million in some spectacular way because 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 in Atonement. This dress, always, henceforth and forevermore, amen.