I believe everyone can watch this documentary, yet, my perspective is that it would be most interesting to Said Nursi's readers and students. It's significance is not in film methods, but in his story and teachings. If you have love for a teacher, you will love even a 10 hour film, and wish it didn't end. Said Nursi was a scholar, preacher, a wise and kind soul, which translated well in the movie. The little boy's relationship with the teacher was the perfect touching element here.
Review of Free Man
