The documentary i watched last year was "102 Minutes That Changed America". A must watch for those that havent seen it in my opinion. You can watch it here streaming and i bet its on netflicks for those that still have it:
102 Minutes That Changed America | Watch Free Documentary Online
Theres no narrator but youre well guided through the documentary by multiple perspectives depicting the 102 minutes chronicled in real time of days events. A lot of the footage is stunning and simply unexplainable.