Just after “Rebecca” from the same year, Hitchcock tackles a WW2 related story, a spy movie “Foreign Correspondent”.

Not among the very best films of the director, there is nevertheless great scenes, a criminal running through umbrellas, windmills, a plane crashing into water…

Considered by a few as pure propaganda film (Hitler’s right arm Goebbels telling about the film “A masterpiece of propaganda, a first-class production which no doubt will make a certain impression upon the broad masses of the people in enemy countries.”)

If you want to listen to the conversation between Hitchcock and Truffaut on the film:

via Foreign Correspondent (1940) Alfred Hitchcock, 1080p