James Bond filmography by Connery, was selected as the third-greatest hero in cinema history by the American Film Institute. When Sean Connery had been cast in November 1961, David Niven had been Fleming's choice for the role as the actor reflected his image of the character. In 1965 producer Charles Feldman signed Niven to play Sir James Bond for "Casino Royale", a film not made by Eon Productions. Connery and Peter Sellers had both turned down the role. Niven was 56 when he played Bond and his characterisation was that of an elderly man who had won the Victoria Cross at the Siege
David Niven Niven contained assertions, based on information from his widow and a good friend of Niven's, that he had had an affair with Princess Margaret, 20 years his junior. In 1980, Niven began experiencing fatigue, muscle weakness, and a warble in his voice. His 1981 interviews on the talk shows of Michael Parkinson and Merv Griffin alarmed family and friends; viewers wondered if Niven had either been drinking or suffered a stroke. He blamed his slightly slurred voice on the shooting schedule on the film he had been making, "Better Late Than Never". He was diagnosed with amyotrophic lateral sclerosis (ALS,