'Madeline Khan''s character uses 16 names: Denise Manderley, Wanda Coleman, Gilda Dabney, Chloe LaMarr, Alma Chalmers, Alma Palmers, Vivian Purcell, Carmen Montenegro, Diane Glucksman, Mrs. Danvers, Natasha Ublenskaya, Sophie DeVega, Mary Jones, Lady Edwina Morgan St. Paul, Norma Shearer, and Barbara Stanwyck. The name used most is Mrs. Montenegro.
Neil Simon claimed that Warner Brothers had saved light fixtures and decorations from Humphrey Bogart's club in "Casablanca", allowing them to be reused as props in this movie's club, Nix Place. He also claimed some of the original waiters were reused as well!