This movie is fun to hate... some good visuals along the way but it will go down as James Cameron's self-gratification wet dream in my book. Atrocious writing, flat characters, and dialogue that almost rivals the Star Wars clone war movie in "quality". Even the reasons for the humans coming back to Pandora (unobtanium, terraforming) appear go out the window in favor of the revenge-at-all-costs plot line. The time dedicated to "the hunt" and the amount of zeal the humans have in going after of the whale-like creatures was comedic.
Why that movie had to be 3 hours and 10 minutes is beyond me!