"Narrated by Bryan, this historic film on the fall of Poland is a powerful and timely documentary. The US film production company Radio-Keith-Orpheum (RKO) released the footage in 1940 as a newsreel in its 'Realism Series.' It represented the first non-Nazi produced footage covering the start of World War II seen in theaters across the US." (United States Holocaust Memorial Museum, Holocaust Encyclopedia, Siege (1940))