Yes I saw it 2 times in theatre last year , and third time on TV.
Avatar reflects the socio-political issues in current world , And incidentally Bonda tribals on Niyamagiri Hills in Orrisa where Vedanta wants to do mining have striking resembelence to this movie.
It is 100% worth watching .
James Cameroon selected the blue color of Navi and Toruk ( giant red one) from Hindu iconography of Vishnu flying on Garuda. Earlier also he had used lots of concepts of philosophy of Geeta in Star Wars series ( Yoda Quotes)