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 an English teacher who saves a young Welsh miner (John Dall) from a life in the coal pits, by offering him education. The part had been played in the theatre by Ethel Barrymore, but Warner Bros. felt that the film version should depict the character as a younger woman. Davis disagreed, and insisted on playing the part as written, and wore a gray wig and padding under her clothes, to create a dowdy appearance. The film was well received by critics, and made a profit of $2.2 million. The critic E. Arnot Robertson observed: Only Bette Davis...could have combated so