Movie Triumph of the Will (1935)
A legendary propaganda/documentary of the Third Reich’s 1934 Nuremberg Party Rally. Featuring a cast of thousands as well as, of course, Hitler, Himmler, Goebbels, Hess, Goering and other top party officials.
[youtube https://www.youtube.com/watch?v=YlPScCOM7-Q&w=560&h=315]