I've reached the point on Tokyo Inferno where my edits are now caught up with where I left off with the manuscript back when I was still writing it (for NaNoWriMo). I'd decided to stop and backtrack, and do some more research, before diving in and writing the rest of it.
Good news about the research is that most of what I ended up reading turned out to square with my original guesses. At the same time, I wanted to have that many more details to draw on, even if they're just starting points to spiral outwards from.
I'm now about a third of the way through the manuscript — if not by raw word-count then certainly by plot markers. Now that the basics of the story have been mapped out, the rest is (I hope) smoother sailing; all I have to do is put my head down and write my thousand or so words a day and the rest should fill itself in quite naturally.
No, I didn't see Watchmen this weekend — but I will, honest! What's interesting is how the fans of the book are not as enthused about it as most other people — something I suspect will even out as time goes by. Something of the same thing happened with Blade Runner, if memory serves: those who'd read Sheep were irritated at how little the movie resembled the book, but once people got over that they were able to appreciate how they were as similar as they were different.