The gold standard of world war 2 documentaries is the World at War. This series differs in a few respects. It is in colour which is more visually appealing. It is much shorter than the World at War. It has a lot less interviews. The World at War was filmed much earlier when more participants were available, particularly notable people e.g. Hitler's secretary. Overall, this series is good on footage and is more concise but lacks the humanity of the interviews.