Is Avatar just a mixture of The Smurfs,Juric Park and The Terminator?

Some of the characters resemble those of Terminator and Juric Park though the message the movie sends is different and a very good message. I (19yrs) and my parents (40yrs) really enjoyed it, though my brother (21yrs) didn't so much. The beginning can be hard to understand but as the movie goes on it is really self explanatory and a great movie you should see (ESPECIALLY AMAZING IN 3D)!