"Faye Dunaway has said that during the filming, she felt Joan's presence on the set many times.

During Faye Dunaway's interview on Bravo's Inside the Actors Studio, James Lipton saved the topic of "Mommie Dearest" for the end of the interview, being as how Dunaway credits the film for ruining her career. When he comments on her appearance in the film as Joan, Dunaway says that she and the make-up artist worked for hours trying to get the "Crawford look". Finally Faye says she discovered that Joan looked the way she did because of the way she purposely held her facial muscles, thus explaining why Joan looked different in her very early career. Faye says "It was chilling.""

From the Wikipedia article on Mommie Dearest
http://en.wikipedia.org/wiki/Mommie_Dearest_%28film%29

In order - Mary Pickford, Lillian Gish, Gloria Swanson, Marlene Dietrich, Norma Shearer, Ruth Chatterton, Jean Harlow, Katharine Hepburn, Carole Lombard, Bette Davis, Greta Garbo, Barbara Stanwyck, Vivien Leigh, Greer Garson, Hedy Lamarr, Rita Hayworth, Gene Tierney, Olivia de Havilland, Ingrid Bergman, Joan Crawford, Ginger Rogers, Loretta Young, Deborah Kerr, Judy Garland, Anne Baxter, Lauren Bacall, Susan Hayward, Ava Gardner, Marilyn Monroe, Grace Kelly, Lana Turner, Elizabeth Taylor, Kim Novak, Audrey Hepburn, Joanne Woodward, Shirley MacLaine, Natalie Wood, Angie Dickinson, Janet Leigh, Brigitte Bardot, Sophia Loren, Ann-Margret, Julie Andrews, Raquel Welch, Tuesday Weld, Jane Fonda, Julie Christie, Faye Dunaway, Catherine Deneuve, Jacqueline Bisset, Candice Bergen, Isabella Rossellini, Diane Keaton, Goldie Hawn, Meryl Streep, Susan Sarandon, Jessica Lange, Michelle Pfeiffer, Sigourney Weaver, Kathleen Turner, Holly Hunter, Jodie Foster, Melanie Griffith, Sharon Stone, Meg Ryan, Demi Moore, Julia Roberts, Uma Thurman, Sandra Bullock, Julianne Moore, Diane Lane, Nicole Kidman, Catherine Zeta-Jones, Angelina Jolie, Charlize Theron, Reese Witherspoon, Gwyneth Paltrow