I think people hate this movie so much because they love the source material. I enjoyed the special effects and element bending scenes. However, the acting was not up to snuff. I remember the scene in which Aang was going back to the air temple thinking all his friends were alive. He was supposed to be very happy. I just did not feel that the Noah Ringer did a convincing job expressing that emotion. There are many other examples involving other actors as well. I blame Shyamalan, he should have done a better job coaching the actors to get the proper emotions.