I rarely post on this forum, but this demanded my attention. I will tell you now, do not see this movie. If you decide not to heed my warning, please for the love of god do not pay for the 3D. It was done after-the-fact for increased ticket prices, which means you're basically paying to wear uncomfortable glasses on your face and barely anything pops out at you. Which is a shame, as how there are some almost cool affects in this movie. Anyone who saw Clash of Titans in 3D will know what I'm talking about.
Moving on.
The dialogue was clunky, as well as the story. There was no sort of greeting or seg-way through conversations at all. It was unnatural at best and painful at worst.
The first 45 minutes or so, was more like a narrated story with any lack of feeling or guidance. Something would happen then they would cut to a new event with new narration and little reasoning as to why they didn't finish with the event they were originally dealing with.
The "action" was slow. Horribly slow. And, the soundtrack did not help matters at all. What you saw in the trailer, the intense "Two Steps from Hell"-type music you get from most action movie trailers these days was absent through the entire film. What you are left with is a melodramatic calming sort of melody during what are supposed to be "intense" action scenes.
Any fan of the original show will definitely disagree with the way the elements were controlled. While this may be a smaller contention, it is not to be ignored. Actors were performing entire choreographed dances for a single rock or column of water to be thrown at someone. Often, the "element" was behind or delayed by the motions and didn't move with the actor at all.
Finally, the ending was pretty awful as well. I don't want to spoil things so I won't go into that much detail but I will say that I haven't been this disappointed with an ending since Resident Evil 3, and I think we can all agree that that shit was a-w-f-u-l.
To it's credit, this is one of the more "true to original" sort of book/tv-to-movies I've seen in a long time.(At least, as far as scene sequencing goes.) But, it truly needed an extra hour or so to just fill in the gaps between scenes and show us character motivations. It seemed like M. Knight Shamablah was trying to give us a quick moving action movie(ie, disreguarding things like plot and character motivation) and instead just delivered slow boring action scenes that a monkey could have directed better. Kids movie aside, which I'm not quite sure it was supposed to be entirely anyway, you're better off spending money to go see the Karate Kid if you want action. No joke.