I was mildly to moderately disappointed. Personally I did not find it as visually original as I had hoped and, as many have pointed out, the story line is cliched and very left wing with anticapitalist, antimilitary, anti war on terror and pro man-caused climate change themes woven into the story line in various degrees.
The special effects were good, of course. (It is ironic that only free enterprise capitalism could have developed the technology that made this movie possible.) Like too many movies now days, this one tries to excel based on special effects alone and in the absence of a strong and original underlying story.
Titanic was one of the most emotionally powerful films that I have seen. Avatar, on the other hand left me unmoved.
That said, I don't regret having seen it.
I enjoyed Titantic also .. saw it many times at theater & own the DVD.
(and I am over 60 Malkee)
okay, gotta fly out here & get busy.