J.R.R. Tolkien: Origins of Middle-Earth (2003)
Peter Jackson, Jude Fisher, Philippa Boyens, a few Tolkien experts (such as Tom Shippey), and others tell the narrative of J.R.R. Tolkien's friendship with C.S. Lewis, their experience in World War I, Tolkien's inspirations from the war, the creative process and composition of The Lord of the Rings,