Desc: Churchill's Secret Son: Directed by Darren Richardson. With Lorna Bumford, Paul Cowley, Ewan Macleod, Simon Rayner. Brendan Bracken was Winston Churchill's closest advisor for over 30 years. Was Brendan Bracken Churchill's illegitimate son? In the 1920's even Winston's wife had to ask. This documentary tells the truth about this remarkable man.