The director did an excellent in job in making a compelling story about these seemingly diverse individuals. He chose very powerful stories. I especially enjoyed his editing technique--showing the overlapping similarities of these individuals within the film itself. His music choices were very effective as well.
As far as improvements, while I did enjoy the use of steady cam exclusive use. His camera did move ALOT, and I can see how this may make the picture look low budget and cause nausea in some.
My favorite part of the film revolved around Shelby's story--the man whose built the castle for his deceased daughter. Of all the stories and individuals, I found him to have both the most interesting and most revealing story. I'll always remember the lines, "I'm a master a mason, a knight templar... suicide is not an option." Those sum up his entire story. His architecture was also my favorite.
Overall, I thoroughly enjoyed the film. I went in there knowing nothing about its topic and came out of it with a great understanding of it.