I got the impression from comments here and articles elsewhere that this documentary would be another expose on the alleged New World Order and related subjects. But that's not what this is at all.
This film isn't about conspiracy theories; instead it's an intimate look into the lives and mindsets of people who honestly believe in them. It's fairly objective and relatively nonjudgmental -- so much so it might even come off as a sympathetic review of what they have to say if you're already a believer.
However, if you previously dismissed people like Alex Jones as kooks, you might gain a very different kind of sympathy here, and it becomes more difficult to call those "911 was an inside job" demonstrators stupid. While misguided, all the people featured in this film are depicted as victims of obsessions that have targeted each of their specific vulnerabilities. This documentary doesn't support their positions but instead demonstrates how such ideas can take hold in otherwise rational people.
Again, this is not done in a mocking tone. It's actually hard to come away from this film without feeling sorry for all the people involved. By their own actions, admissions, and candid comments, those featured here reveal that they're the ones actually wearing the blinders they're committed to telling everyone else to take off. On some level Alex Jones even seems to understand this, but his occupation forces him to stay trapped inside his obsessions. For others not so invested, time might be a simple cure if they can get away from the cult-like reinforcement their obsessions have encouraged them to seek.