Trivia

This film is in the public domain; it was never registered or renewed.

This documentary was made about twenty-six years before the popular 1960s war movie Battle of Britain (1969), considered to have the same or similar title to this documentary. The slight difference in wording of the titles is that the later picture drops the definite article (i.e. the "the") in its title.

In the year 2000, the United States Library of Congress mandated that this film (and the other six documentaries in the 'Why We Fight' series) were "culturally significant" and selected them for preservation in the National Film Registry.

This documentary is the fourth film in Frank Capra's seven-film 'Why We Fight' documentary film series.

This documentary is considered a Second World War wartime propaganda documentary film of the United States.