It has the potential to get best picture.
It should get best director.
I hope Astin gets best supporting actor. He has done a remarkable job, but the ensemble nature of the cast will most likely hamstring that.
It should get best costume
It should get best adaptation from a novel
It should get it for Cinematography
They should make an Oscar for best voice talent of an animated character (given Final Fantasy: Spirits Within, Gollum, Dobby, Scooby Doo, etc.)
My prediction is that it will get Director, Costume, Cinematography and Adaptation.
There are chances for various best performer categories, (actor, actress, supporting actress, supporting actor), but if it gets Director, Costume, Cinematography and adaptation, they might use those to throw a bone to other films.
Hope it wins best picture, but I doubt it.
Then again, RotK could just sweep it... (Hey, I can fantasise, I _AM_ a dungeon master after all...)
Aaron.