I own and have read the real Mein Kampf, written by Adolf Hitler during his short stay in prison, and also quite a lot of other literature about Hitler and his early years, which is important, since Hitler did not shy from lying in the book.
Now, the film about Hitler's early years in Vienna could have been so good if it didn't try to explain every little thing that would later happen - the idea to the swastika for example, or even the growth of his now characteristic moustache.
The film portrays Hitler as a young, from the beginning hateful man who is adopted by a jew (of course) and how he drops from being a failed painter to a leader of a small group of thugs, leading them against the jews.
This is ridiculous and has very little with the truth to do. The only thing the film gets right is: Hitler failed getting into the art academy. That's it. The rest is a some kind of desperate attempt to explain every little detail with the later NSDAP and antisemitic movement and of course Hitler himself, which is a pity really, since I looked forward to seeing a film about the early years without the bias towards Hitler - which of course is hard to shy away from if one is a normal, thinking person.
Technically it is brilliant, and the acting is good - what the film lacks is a more observing eye or script, which is the basics in ANY good film.
I would not recommend it, unless one has nothing else to watch and don't care about details as a history buff, because it is good enough to kill a couple of hours with. Despite the flaws.