Great documentary from Adam Curtis (feel that isn't the right way to describe Adam Curtis' films).
It is so intelligently assembled from a wide variety of material from the BBC archive, with which I always picture Curtis exploring like Hangar 51 in Indiana Jones.

I found it an incredibly absorbing way to tell the story of how Afghanistan became the Afghanistan we know today, all through the lens of how information is manipulated by politicians, the leading classes and the media to the public - leaving them bewildered at what the hell is going on.

UPDATE - BBC have pulled the full length doc from YouTube - so not sure where you can see this. The more adventurous shouldn't have a problem...