I thought the Transformer robots were pretty amazing as well. Another one you should check out is "A Night with the King," which has these really broad cityscapes of Babylon, with waterfalls, crowds, smoke, flowing river, etc., all of which was rendered in AIR.

WOW. I kept watching some of the scenes on AIR's website, too, and, even knowing what I knew, I was super impressed with what those guys achieved.