Award-winning writer, broadcaster and naturalist Sir David Attenborough talks to presenter Kirsty Young about his life and career as he approaches his 90th birthday. Filmed in front of a live audience, Kirsty and David discuss the many pivotal moments of his life, from collecting fossils in the Lake District during his childhood through to his pioneering work on natural history programmes that have inspired, entertained and educated so many people around the world. The film also uncovers the story behind some of the most unforgettable moments in his career and finds out what happened after the cameras stopped rolling.