I saw them flying around right over deep cove/cap U area… Seemed very strange, and extremely low
Cameron has been working on this project for 10 years developing new CGI technology. What the technology is can be explained here http://www.firstshowing.net/2009/04/24/a-few-new-avatar-behind-the-scenes-photos-from-empire/ Also the other reason he didn't start this project directly after Titanic was he felt CGI wasnt good enough at the time, so he waited.
Sasha Baron Cohen looks like he's done it again. This is absolutely ridiculous.
Looks so badass so stoked for this movie. check it out