Betsy Blair December 11 1923 March 13 2009 was an American actress of film and stage long based in London Blair pursued a career in entertainment from the age of eight and as a child worked as an amateur dancer performed on radio and worked as a model before joining the chorus of Billy Roses Diamond Horseshoe in 1940 There she met Gene Kelly They were married the following year when she was seventeen years old The couple divorced sixteen years later in 1957 After work in the theatre Blair began her film career playing supporting roles in films such as A Double Life 1947 and Another Part of the Forest 1948 Her interest in Marxism led to an investigation by the House UnAmerican Activities Committee and Blair was blacklisted for some time but resumed her career with a critically acclaimed performance in Marty 1955 winning a BAFTA Award and a nomination for an Academy Award for Best Supporting Actress She continued her career with regular theatre film and television work until the mid 1990s