D.W. Griffith can even direct it, as he was from Kentucky.Another thing, One of the first ever blockbusters, Birth of the Nation from 1915 (One which has aged horribly) focuses heavily on Reconstruction. So this really makes me wonder what the first Blockbuster in TL 191 would be about. Seeing that the Union and Confederacy would be at war in 1915, I can see it being a Confederate Propaganda Film that focuses on the South's glorious victories in both the Mexican War and War of Secession. It could even still maintain it's name "Birth of a Nation."
On the question of Expressionist films, maybe France fills that slot in this timeline? I could see the societal backlash from losing TWO wars against Germany leading to a degredation of "traditional values" which would in turn lead to the Actionists taking over due to the subsequent backlash from conservatives, much like the reactions of traditionalist Germans who saw such things as Art Deco, open Homosexuality, immigration and the seeming collapse of "Germanic" values during the Weimar era and supported Hitler.
The Cabinet of Dr. Caligari, for example, could be about French Shell-Shock victims instead of German ones, and Lang's "Metropolis" could be translated as a French vision of a stratified future of haves and have-nots.