I honestly think the book was better than the movie because the book went into detail about certain events but like in the begining at the reaping they said Haymitch passed out off the stage because he was drunk another example is when Rue died they never told us about her dad going crazy in District 11 with all of these things missing from the book and the some parts missing from the movie it all made me confused and i kept tapping my neighbor saying "didn't _________ happen in the book. After all, the movie was good but I think A LOT of the main events were missing and i like the book better.
My favorite part in the movie was when she was mocking the game makers by saying "let the odd's be in your favor" in a funny voice then the next day she was IN the hunger games.
As far as the characters, I think they picked really good characters Katniss face,body,and thinking all matched her hostile personality. I think Katniss was a very strong girl. She took care of her mother and her little sister by hunting and stuff. I think her personality stuck out the most when Peeta said he was in love with her and she went backstage pushed him against the wall,chocked him,and started yelling at him. I loved her! she kind of reminded me of me becaus enot that friendly LOL