Mary Dees had to wear a costume to darken her face while filming Saratoga .
MGM wanted to reshoot the movie with Virginia Bruce or Jean Arthur , but Harlow 's fans complained , so the remaining scenes were filmed with Mary Dees , shot from behind or with costumes that obscured her face , playing Harlow 's part for the camera , and Paula Winslowe supplying Harlow 's voice .
Saratoga -LRB-film-RRB-