Philip Ragan Productions was responsible for "One World or None", using a mix of animation and live-action stock footage, including scenes from Hiroshima and the Nuremberg War Trials. Philip Ragan was a filmmaker from Philadelphia who specialized in cartoon animation. In 1941, Ragan was contracted by John Grierson at the National Film Board of Canada (NFB) to complete a series of animated films for the National War Finance Committee promoting Victory War Bonds. Between 1941 and 1945, Ragan produced 27 animated films for the NFB, many of them educational films.