Keira Knightley’s unforgettable green ‘Atonement’ dress is going up for sale

Almost two decades after Keira Knightley bewitched audiences in the 2007 film, “Atonement,” the emerald-green silk dress she wore in a pivotal scene is coming up for auction.

​ Almost two decades after Keira Knightley bewitched audiences in the 2007 film, “Atonement,” the emerald-green silk dress she wore in a pivotal scene is coming up for auction. Read More Breaking News, Latest News and Videos | CNN