Lucas sends:

http://www.youtube.com/watch?v=eVcjpuzMjmo

That's the original one that's six minutes long. I just posted a shorter version
last night in case people can't watch something that long:
http://www.youtube.com/watch?v=R1J4K3aZuww

I made a post explaining the filming process on my blog:
http://lucasridley.com/2010/02/22/video-avatar-goes-hang-gliding/.