Regardless of your political opinion about the video, there's a shortish part where Adam Curtis talks about Cyberspace and the cyberpunk movement. As a big fan of William Gibson's work, I've found that part alone well worth the time. I'm sure there are a lot of fellow cyberpunk fans here, so this is my advice: if you are not interested by the political aspect of the documentary, the Cyberspace bit is worth your time (and pretty much free of political discussion, as the Cyberspace should be)