Under her contract she had co star approval. MGM wanted Errol Flynn to co star. Douglas persuaded Johnny Cash to co star. Donald O'Connor was to co star. David Susskind originally wanted Richard Burton to co star with Olivier. Bogarde persuaded Margaret Lockwood to co star. By May Ann Margret signed to co star. In April Sigourney Weaver was to co star. Lilli Palmer was announced as co star. Ronald Reagan eventually signed to co star. Jordan Christopher, married to Richard Burton's ex wife Sybil, signed to co star. In March Wallis said Don de Fore would co star with Stanwyck. In March, Frank Sinatra agreed to co star. In October 1968 Cliff Robertson signed to co star. They decided together on Burt Reynolds as co star.