I saw Werner Herzog's The White Diamond, a documentary about a rather emotional flight engineer who brings his airship project to Guyana. Like a lot of Herzog's documentary work, I found it to be loose and unfocused; a lot of time seemed to be spent on nonessential matter. Herzog's style of interview can sometimes be patronizing; sometimes he seems to be putting words in his subjects' mouths ("Would you like to use this airship to travel to your family in Europe?"). One observation that I think can apply to the majority of Herzog's work is that it is driven more by personal ambition than by professionalism and his sense of documentarian's responsibility [if he has one]. However, because of this approach, the man is able to get into places and encounter people that are often... completely unique. I don't think that anyone whose brain is awake will generally take the information he presents as authoritative, and as long as that is assumed, I think his films are worth watching, as you'll likely see things you won't see anywhere else.

Here's the main think about The White Diamond: watch it, because it also has some amazing stuff, particularly if you like [trust me] roosters.