It may be interesting to note, that a channel named Adronis (Brad Johnson channeling Adronis) mentions in one of his presentations that 'Avatar planet and people' really exist about 50 light years from our solar system.
Seems that James Cameron got his inspiration for Avatar from actual reality in the universe...
You can watch Adronis's presentation here;
http://www.ustream.tv/recorded/3706379
At about 1 hr 5 minutes Avatar movie is mentioned.