How Did Julie Allred Die?

What Ever Happened to Baby Jane? is a 1962 American psychological horror thriller film directed and produced by Robert Aldrich, and starring Bette Davis and Joan Crawford, and featuring Victor Buono in his major film debut. The screenplay, adapted by Lukas Heller from the novel of the same name by Henry Farrell, follows an aging former child star tormenting her paraplegic sister, also a former film star, in a dilapidated Hollywood mansion.