To put this into a film is to reduce and cut so much that only the ones that know can follow. The focus of the film is the battle between AC and DC and their famous representatives: Edison and Westinghouse. It feels a bit like a way to bring Edison back in particular as a decent man in spite of his abuses. Westinghouse is depicted as the best man that recognized Tesla's talent just in time.
The film is more about fooling the viewers than humbling the character. Films like this are annoying. We get hooked into a story and the change is brutal if it's just dream. Okay when the film gives clues and we must deduce but this one is like a maze with dead ends. When we get out of it, we don't know where we have been.
Another film inspired by the Nazi invasion in France. This one shows a more normal side of life, where the danger and the dread is not taken seriously until something happens. Lots of close calls to keep the tension and enough normalcy to imagine how it could be tolerated.