New 28++ Lily James Cinderella Blue Dress. Lily james and richard madden's costume from disney's cinderella on display. The actress, who stars in cinderella, seemingly hasn't dropped character since filming wrapped as james' personal style is more mini dresses and jeans with undone hair as opposed to floofy gowns and slicked back updos. Cinderella's dress boasts countless layers of tulle on the petticoat and no less than four miles of thread.