Although I don't typically enjoy either action movies or sci-fi stories, I felt that Avatar was entertaining because of its stunningly beautiful & jaw dropping visuals. I would recommend the film, but viewers should know that it drags quite a bit for the final hour and, as a result, loses some of its appeal.
Lacking both the wit and story line that the TV show had, this overly long revisit with Carrie and her gfs was both predictable and disappointing. If you must see the movie, just wait until it's out on DVD. This was a supreme waste of both time and money.