As a fan of the series - I devoured the trilogy, could not put it down once I started it - I was looking forward to seeing this and was a bit disappointed that they didn't show more. I think it was too brief, too vague (maybe not necessarily for those who've read the books but for those who've never read it, well, they'll probably be scratching their heads a bit). Although the more I watch it, the more I like it.
It shows Katniss running in the arena, a few things exploding around her, trees falling then we get a bit of archery action (More please!) - At the end of it is (what I'm guessing) Rue's 4 note song which had a very eerie melody.
Here's the video clip.
"Listen to me. You're stronger than they are. You are. They just want a good show, that's all they want. You know how to hunt. Show them how good you are." - Gale
The film is slated to come out on March 23, 2012.