I personally really enjoyed avatar (2009), whilst the story wasn't the most original, it made up for it with a good cast and great VFX. This movie is a stain on that movie and James Cameron's career as a whole.

The action scenes are way too fast, like the audience is supposed to have the attention span of a haddock. Throughout the movie the special effects were laughably low-quality, it felt like I was watching a cutscene for a cheap xbox 360 game.

The story was moderately original this time but the characters were so unlikeable including Jake sully who just came off as unbearable jerk. I gave the film 2 stars as the only character who wasn't cocky, arrogant or annoying was Sigourney weavers kiri, she had a pretty decent subplot and was one of the only characters I liked.

My opinion. Just save your cash and rent the first one on amazon.