dates and alternate release
The IMDB board lists this film having been released in April 1939.
The body of the film deals with events such that that date looks to be accurate.
Particularily interesting though is the ending. Holland, Belgium, Norway and Denmark were attacked 1 year later in April and May of 1940. Germany and the Soviet Union attacked Poland in September 1939. The Soviet Union was then allied with Germany and shows them being despicable for attacking Finland. September 1939 is considered the start of war in Europe. Germany attacked the Soviet Union in June of 1941. We entered the war in December of 1941. Two and one half years after the listed release date. The ending must have been tacked on sometime in 1941 as it lists Italy and Japan as Germany's allies, and not the Soviet Union. Yet it is sympathetic toward Finland which would not have been shown if the ending was added after our entry into WW II. Any idea when the alternate version came out?
Seafire