I just saw this film last night on Netflix and I can't get stop pondering it. Its a great German film from 2015 called Look Who's Back (German: Er ist wieder da). A documentary/satire, it follows Adolf Hitler as he's transported to 21st century Berlin. Hitler then travels the breadth of modern-day Germany, now with a backing of a German media group, from Bavaria to the south up to the North Sea Coast.
What makes it so immersive is not only the way they captured Hitler's charisma and mannerisms, but also how they incorporated unscripted real life scenes of the Hitler actor interacting with everyday Germans. In retrospect, as it was filmed in 2014, I think it helps enlighten some of the sentiments bubbling underneath in relation to the resurgence of the Far-Right in Europe and the Americas, only 1-2 short years later.
I won't spoil the film, but let's just say that many of the interactions with Hitler and the average German on the street appears at odds with the impressions we get of a highly-progressive Germany. Many were ready to reconcile with Hitler, confiding in him everything from their loss of belief in democracy, to the need to build labor camps for foreigners, and even admitting that they would vote for him!
Here's the Netflix link (German with subtitles): https://www.netflix.com/title/80094357