Aside from that, they took out the sweet sleeping syrup Katniss used on Peeta in the cave, and they also skipped over what I thought was a fairly important scene at the end, when Katniss confesses that she'd been acting in love with Peeta to play to the cameras, and Peeta feels betrayed. They also made Katniss's interview appear a little better than it was supposed to be in the book, because originally she had spun around giggling and falling over herself, looking silly, frivolous, and simple-minded. Also, I had imagined that when she spun around, it wasn't just the bottom of her dress that appeared to catch fire....but now I'm getting into really minor details.
Honestly I'm just nitpicking here because on the whole, the things that impressed me largely outweighed the things that didn't, and I have to congratulate them for a movie well done.