So Mata Nui lives and we learn that almost everything that has happened prior to 2008 was happening inside the mini universe that is the giant robot body of Mata Nui. The world is saved, everything is right in the world... right? Turns out Teridax was thinking so far ahead its not even funny and has taken over Mata Nui's body, forcing his mind into the Mask of Life and launching the mask into the stars... scrap... While the intro animation does look nice, I'm going to side track a bit to point out a small problem. According to what I've found, the robot body was on moon known as Aqua Magna, and see this shot here?
The animation looks both better and worse then Web of Shadows. Better by way of the characters and vehicles, even the animals like the Scorpio as they have a lot of detail to them now, but worse by the way of the world itself. Bara Magna is, for the most part, a desert, and while the villages look nice, its the filler in between that's forgettable. Again though, there's not much you can do in a desert. The soundtrack is also different from the last three films, but still on the same quality as Web of Shadows, pops out at times, but nothing memorable, well, except for one song.
*Final note, this is the credits theme of the movie