There are three main elements in the movie. First off, the dialogues and script. They are intense, witty, honest but not patronizing, intelligent but not pretentious. You don't expect such high level of script from an action movie. Secondly, Hugo Weaving's performance. It is what grabs you from the start. He delivers some of the hardest lines with incredible charisma. Finally, the visual part. Incredible, yet no "Matrix" effects used. Everything looks beautiful, dark yet vibrant.