The research in this movie is superb ! I applaud the efforts to find every piece of evidence possible to create this horrible and appauling chapter in the history of human beings. There are more than a few hard scenes to watch - and I found myself even getting queezy in my stomach on some of the graphic pictures shown throughout this movie. But the story needed to be told. And it was superbly directed and written. History and Nazi buffs, like myself, will appreciate the work that went into this film.
I am into the history of the Holocaust extermination, and believe this is one movie that goes from the beginning to the end (in order). It is easy to understand even for beginners. I thought it was great.