Applause (musical) resulting musical could not contain any dialogue or characters that had been created for the movie but could use the original material that the movie also used. In April 1969, it was announced that Strouse, Adams, and book writer Sidney Michaels were beginning to work on the show, with Lawrence Kasha producing. In July 1969, movie star Lauren Bacall was cast as aging theater star Margo Channing, the role played by Bette Davis in "All About Eve". Bacall greatly identified with the role, explaining, "The Margo Channing of "Applause" and myself were ideally suited. She was approaching middle age. So
Bette Davis and "Thank Your Lucky Stars" (1943), a lighthearted all-star musical cavalcade, with each of the featured stars donating their fees to the Hollywood Canteen. Davis performed a novelty song, "They're Either Too Young or Too Old", which became a hit record after the film's release. "Old Acquaintance" (1943) reunited her with Miriam Hopkins in a story of two old friends who deal with the tensions created when one of them becomes a successful novelist. Davis felt that Hopkins tried to upstage her throughout the film. Director Vincent Sherman recalled the intense competition and animosity between the two actresses, and Davis