Vanishing Cultures: Bushmen of the Kalahari: British actor Michael York narrates filmmaker Paula Ely's thought-provoking examination of the San people of southern Africa, a culture rooted in the Kalahari Desert that's survived for some 80,000 years but now faces all-out extinction. Also known as Bushmen, these inherently peaceful people are now grappling with the encroachment of modern society. In the process, their ancestral ways are vanishing.