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
Margo Seibert in the musical version of Rocky originally played in the films by Talia Shire. Later, she played Tock in the musical adaptation of The Phantom Tollbooth at the Kennedy Center. She played the role of Danielle in "Ever After", the musical adaptation of the 1998 "Cinderella" film version of the same name. The musical opened at the Paper Mill Playhouse, Millburn, New Jersey, in May 2015. She appears in the musical "In Transit", which opened on Broadway on December 11, 2016. Margo Seibert Margo Seibert is an American actress and singer. Seibert is the daughter of Debbie (née Sykes) and