This movie haunted me for months after seeing it, but I think that it should be considered required viewing. This movie does an amazing job at showing the kind of mindset which allows tyrants like Stalin to get away with their crimes. Those who don't understand history are doomed to repeat it, and this movie does a great job at hammering that understanding home in a very heart-wrenching manner. This movie will shake you up but you'll come away from it with some really interesting perspectives on the human spirit and what we're capable of.