Still a bit too soon for a spoiler-infested post from me (other sources may vary), but I’d like to draw your attention to this rather nice behind the scenes thingy that’s currently on the BBC iPlayer:
Now that’s only available for a week, and hard to watch from outside the UK without fiddling with proxies and other such things. So it’s a good job it’s on YouTube as well.
If by some chance you haven’t watched the Day of the Doctor yet, and you’ve managed to avoid all spoiler-infested reporting of it, you might not want to hit play on this. Otherwise, enjoy what should have been on Doctor Who Confidential after the show: