My sister borrowed the graphic novel adaptation from her school chum~ I was very impressed upon reading it. I don't know very much about Gaiman (I've read Neverwhere, seen MirrorMask, and read his short story Snow, Glass, and Apples), but I've yet to be disappointed by anything he's produced.
I sort of wanted a little more information on the beldam, though ... although the ambiguity also works.
THOUGHTS?~ Has anyone seen the film?