I've read the story in translation, and probably a little of it in the original. And, I know where liberties were taken, but I'm good with them. It's not even so much liberties here as interesting interpretations, and ones which resonated for me. And the look of the film is great.
It's very different in feel from Stardust, of course. This one's a tale for the mead hall.
Tip: 3D is best seen from the center of the row, not one of the ends, and probably from a few rows back from the front row. We came in a touch late, so took the first seats we saw, especially as we could get to them with a minimum of disruption.
3D's changed. Glasses are better. Effects are better. But, at least from where I was sitting, there are a few weird bits, like a sword that kept changing in size from dagger to small sword to big sword, or bladed weapons that suddenly acquired one hell of a third dimension.
I should probably try to do more of an analysis of the movie, but want to crash now.