For my full adventure and thoughts on seeing The Hunger Games, check my blog.
All I'll say here is that I think you should see it and love it because it was mind-blowingly good.
There were a lot of changes from the books, but it worked well and I enjoyed it very much.
Oh, and I bought the soundtrack. You have to listen to "Just a Game" by Birdy.
One of the most heart-breakingly beautiful songs I've ever heard.