If you want to get my attention a 14 foot tall Mech suit will do the trick. This prop piece was on display at Comic-Con International in San Diego this year.
Avatar is a James Cameron 3D science fiction film due out on December 18, 2009.
The Story: On a small moon called Pandora during the 22nd century a paralyzed Marine named Jake Sully volunteers to exist as an Avatar on Pandora due to the hostile atmosphere. The avatar is a human/Na'vi hybrid. The Na'vi are ten foot tall, blue humanoids that are peaceful inhabitants of the moon unless attacked. Jake falling in love with a Na'vi princess and becomes caught up in the conflict between her people and the human military that is consuming their world.
(via MTV Movies Blog)