The teaser is online! (Spoilers)

[Carol]

zanooda:
> 
> What do you think of the ring itself? I expected the Stone to be a
little larger :-). 
> 
> http://gallery.the-leaky-cauldron.org/default/fullpic/218653
> 
> The Leaky is not my friend though, and my links to their site
usually don't work :-).

Carol:

The link works fine. :-) I expected the stone to look black and to
have a certain familiar design (triangle, circle, line) whose
significance we'll learn later. It was described in the book, IIRC, as
a large, ugly, gold ring, so they got that part right, but the stone
in the film version looks to my eyes like a leaf, which makes no sense
at all. Slughorn shouldn't have any trouble recognizing it, though!

zanooda: 
> I still don't like DD doing magic without a wand. If he could do it,
what was the problem on the tower :-)?

Carol:
Neither do I, but I was only thinking about Tom's wanting a wand. Why
would he think he needed one if Dumbledore can do wandless magic of
that calibre? (It's different from changing the decorations in the
Great Hall by clapping his hands; maybe there's a spell on them to
allow the headmaster to do that.

But your objection is more fundamental. If he can set a wardrobe on
fire without a wand, why not DES (except that he wants Snape to kill
him, which movie fans won't realize)? Maybe he'll be too weak and
helpless on the tower to save himself, as he is in the book, but it
doesn't look like that from the scenes in the cave. Someone said that
he looks 9in the cave scene) like Moses as played by Charlton Heston.
To me, he looks more like Gandalf (who could certainly have saved
himself on the tower, with or without a staff. But then, he wouldn't
have put on that ring).

Carol, wishing that the films wouldn't deviate from the books in
fundamental matters like wands