They Shall Not Grow Old is a remarkable new documentary made by Peter Jackson. The Oscar-winning director has restored and colourised World War One footage from the Imperial War Museum, adding a soundtrack with original audio and transforming the entire project into 3D. In doing so, he has created an astonishing new film that brings the war to life in a way that has never been seen before, ensuring that the lives sacrificed a century ago will remain in the minds and hearts of the generations to come. Inspired by the experiences of his own grandfather, who died in 1940 after having served with the South Wales Borderers since 1910, Jackson trawled through thousands of hours of footage and audio in order to create a narrative that reflects the lives of those fighting on the Western Front. In this fascinating interview, Dan Snow uncovers Peter Jackson’s inspiration for the project, his creative process, and what he hoped to achieve with this astonishing project.