This movie is slow, maybe very slow. It takes its time to develop. Not a scene is wasted, the dialogues are well structured and the characters are intriguing. The night seems infinite, it's everlasting. The musics are mixed perfectly with the images, they are very good, and create the perfect atmosphere. You really empathize with the characters. New York is charming at it's maximum. Then the topics: temptation, love and guilt, always good keys to open human minds and thoughts. And finally, it's impossible not to love Keira Knightley in this role!