This week on Q&A, film producer Carl Colby discusses his latest documentary film about the life of his father, former CIA Director William Colby.
Carl details the actual production of the film, and discusses the choice of his mother, Barbara Colby, as one of his primary interview sources. The film examines the personal and professional life of William Colby who, his son says, was a controversial figure with few close friends and a deep institutional understanding of the spy business.