Yea, that one was pretty good, but there are a lot of the same type of photologs/documentaries that are all very similar because there usually can only be one tour; especially for Americans because they're on very restricted entry. There are two amazing documentaries by a British filmmaker that I highly recommend. It goes into parts no other video has gone.
Crossing the Line: about an American defector that still lives there
State of Mind: follows two girls as they prepare for the mass games
DVDs are by KINO International.
Both are absolutly stunning.