In 1962 the pioneering Sunday Times photographer embarked on a project to photograph the profound social and political changes sweeping across the world, from the slow disintegration of the Middle East, the early collapse of the Communist bloc and the rise of African nationalism, to the totalitarianism of China and North Korea, and the disparities of wealth and poverty in the Americas. Fifty years on, he shows his photogaphs and discusses them with filmmaker Corisande Albert.