For the premiere of My Week With Marilyn at the 49th Annual New York Film Festival on Sunday it was only natural that star Michelle Williams would honor another 50s icon, Christian Dior, and RadarOnline.com has all the stunning photos from the glamorous night.

The actress, who plays Marilyn in the film that focuses on her troubled time while filming 1957′s The Prince and the Showgirl opposite Laurence Olivier, was an ethereal sight in a flowing nude gown at the Dior prescreening cocktail party at the Hudson Hotel in Manhattan.

Harvey Weinstein, Zac Posen, Coco Rochas and Gina Gershon all joined Williams to celebrate the biggest film of her career, which is executive produced by Bob and Harvey Weinstein and directed by Simon Curtis.