Keira Knightley Hunter Green Prom Dresses Long Evening Gown Inspired By Atonement Designer Jacqueline Durran From Alegant_lady, $102.37 DHgate.Com Keira Knightley Same Style Green Vintage Evening Dress in Movie Atonem Jolly Vintage 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 Wonderful Keira Knightley in green dress Atonement, Joe Wright ( 2007) 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.