This is my personal top 5 of the documentaries I've seen for the last year.
For some reason Trek Nation is not out yet, but I've still included it here, and King of Kong is a few years older, but I just discovered it recently, so it's here as well!
Here we go!
The Greatest Movie Ever Sold (2011)
The King of Kong: A Fistful of Quarters (2007)
Secret Origin: The Story of DC Comics (2010)
And one that is not out yet, but I'm certainly looking forward to see it!