The documentary uses animated graphics to visually represent the immense death tolls of different countries in WW2, putting impact on the devastation of the war. It also uses existing images to show the horrors of the war, which have a greater impact than graphics. Interviews provide a first-person perspective on experiences and details not covered elsewhere. Found footage, like CCTV from Columbine, makes the events feel real and shows the destruction, while news coverage demonstrates the scale. Videos and images alongside interviews keep documentaries engaging by providing visual context for discussion.