A Modern Cinderella (1932)

Anita Ragusa the daughter of a costume company owner delivers a dress for a costume ball at the last minute The snobbish customer doesnt like the design at first but agrees to let Anita model it for her to decide whether to keep it Charlie a drunk partygoer sees Anita in the dress and invites her to attend the festivities She reluctantly agrees and sings for the other guests