One of the animators who worked on ‘Mary Poppins’ takes us back into the studio to share behind-the-scenes moments, 60 years after the film’s release! Floyd Norman told “20/20” that he remembered seeing a large crew working with Julie Andrews and Dick Van Dyke when he visited the studio during the production of the 1964 film. Don’t miss “The Untold Story of Mary Poppins - A Special Edition of 20/20” airing tonight at 9/8c on @ABC. Then enjoy ‘Mary Poppins’ airing on Thanksgiving night on ABC.