This mint green and mocha colored ball gown, designed by Cecil Beaton, was created for the 1964 film adaptation of , where it was worn by an extra during the Embassy Audrey Hepburn My Fair Lady Dress Her 13 Sensational Dresses as she transforms into a Princess Classic Critics Corner My Fair Lady Organza Winged Bow Audrey Hepburn in 'My Fair Lady' (1964). , Costume designer Cecil Beaton created 1,500 costumes for this movie, with the exception of the pearl white gown Hepburn wears to the Embassy Ball, an