William Travilla The Man Behind Marilyn's Most Iconic Dresses Goodwood Road Racing WHITE DRESS OF MARILYN MONROE" Marilyn Monroe wore a white dress in the 1955 film The Seven Year Itch, directed by Billy Wilder. It was created by costume designer William Travilla and Step Into Marilyn Monroe's Shoes: The Story of Her Ferragamo Stilettos The image of Marilyn Monroe in a billowing white dress is perhaps the most recognisable costume from The Seven Year Itch. The designer responsible for the costume was William Travilla, who is Behind the Scenes of Marilyn Monroe's Iconic Flying Skirt (PHOTOS)