In my opinion this is a bad documentary.

I see a lot of praise for it, but I see nothing but a disjointed, hard-to-follow argument, that feels like its backed by no (or irrelevant) facts. I leave the documentary feeling less enlightened, and more confused.

It almost feels like the narrative is written by a high-school student with no ability to focus, or refine an idea -- and linking random pieces of information together to push a narrative.

I think the Youtube video posted by user zajd in this thread perfectly lampoons Adam Curtis's style.