New York Times have done a documentary called 'Framing Britney Spears' which is getting quite a lot of attention at the moment, I've no idea what it's about though beyond the obvious implication in the title.
Yeah, quite popular, even spawning some memes. Mostly about her dad, who basically controls every aspect of her financial life and won't let go, despite her being an adult. I have yet to watch it but a few of my friends, who's I trust, say it is pretty good.