Book excerpt: 'Biographies only tend to be definitive until the next one comes along, but there's no danger of Coldstream's erudite, moving analysis ever being superseded' INDEPENDENT ON SUNDAY. As an actor Dirk Bogarde was a Rank contract artist and matinee idol who became a giant of the intellectual cinema, working on films such as Death in Venice, The Servant and Providence. Fiercely protective of his privacy, and that of his partner of 40 years, he left England in the 1960s to live abroad, where he carved a second career for himself as a bestselling author. Although Bogarde destroyed many of his papers, John Coldstream has had unique access to his personal archives and to friends and family who knew him well. The result is a fascinating biography of a complex and intriguing personality.