Change of Habit Change of Habit is a 1969 musical drama film starring Elvis Presley and Mary Tyler Moore. It was Presley’s final acting role; his remaining two film appearances were concert documentaries. It was also Tyler Moore’s fourth and final film under her brief Universal Pictures contract; she wouldn’t appear in another theatrical movie until Ordinary People in 1980. Dr. John Carpenter is a physician in a ghetto clinic who falls for a co-worker, Michelle Gallagher, unaware that she is a nun. Elvis stars as a professional man for the first time in his career. Dr. Carpenter heads a...