So, Coraline is hands-down, the absolute best use I've seen of 3-d, CG, and stop-motion. All three elements are combined seamlessly (no pun intended) in one of the most visually stunning movies I have ever seen. Ever.
DH reread the book last week to prepare and says that the movie isn't quite as dark as the original. I haven't read the book in years, and I thought the movie was plenty dark enough. But it's like Pushing Daisies style dark, where the actual visuals are gorgeous candy-colored wonderful things, which just makes the underlying story that much scarier. The Other World is just exactly as beautiful and seductive as it should be.
In short, I'm pretty much never going through a door again, and I'm replacing all the buttons on my clothes with zippers.
If I had to nitpick, it would be about the voice acting in the supporting roles. Coraline (Dakota Fanning) and both sets of parents (Teri Hatcher and John Hogdman) are very good, but the bit players could have been stronger.
(My second nitpick would be that the slimmed-down non-dorky-looking RealD glasses are not friendly to people with big heads or actual glasses, and I have both. My temples were really sore by the time we left. So note to RealD glasses manufacturers - make them slightly bigger please!)
Oh, and stay through the credits because there's a really nifty animation treat at the end.