I just watched it. Magnificent movie, but not mainstream in the least. The visuals were excellent and very surreal but the humanity of the story was balanced extremely well alongside it.
It didn't hurt that much of the acting was excellent and you really didn't know what was going on.
I don't think I've seen any of Gaiman's stuff before but I've heard his stuff is usually very odd, dark and sometimes funny.
Great humour in there and I couldn't get over the imagination of it all. I don't know how this movie was made (it's so whacked) - to cerebal for most kids, too warped for many adults.
Needless to say I loved it. Like a British Miyazaki!
9/10