the original cast they had was really really bad. jesse mccartney was going to be Zuko and they had someone else who was really really white playing Aang. I know they re-did some of the casting because of the huge amounts of complaints and they recast Zuko and Aang.
I am not happy about it either

I thought it was great to have a cartoon like this, especially made in america and originally airing in america! It was on a kids network and it was really cool how all the different races acted and there was just so much awesome about it, typing about it would fill up pages.
http://img296.imageshack.us/i/twistbend ... ci=-1&rt=4 feels very true.
however, I am still very torn on seeing it. I hate what they did to it...but the action still looks so cool D:
I was at the movies the other day and the preview came on for the movie and my boyfriend said
"...and it turned out that Zuko was the avatar all along, what a tweest!"
-_-