It's hard not to see the relevance of Communism to the speech, too, that being the one of a couple things that loomed (much) larger in the average German mind than the "Jewish question", in the rise of Nazism. No accident that Chaplin would find himself on the wrong side of the House Un-American Activities Committee (HUAC), I guess.
It's maybe the great pre-war (from the American perspective, of course—'39 was the start for Europe, and earlier still for China and other places like Ethiopia) WWII movie.
A very honourable mention to Alexander Korda.
Particularly 'Things To Come', his 1936 film warning of the rise of fascism in Europe, global war and the dangers of air bombardment (thereby bringing mechanised warfare to civilian populations for the first time).
https://en.wikipedia.org/wiki/Things_to_Come
And yes, it is based on the HG Wells story.