When you have a movie that is based off of actual events that happened. You only have so much you may be able to put in the movie. The script may not have been great but they only had so much they could work with. If you want to rip the Writers go ahead but the actors can only work with what they're given you can only improv so much. So if you don't like the acting in the movie blame the Writers it's not the actors fault. PS personally I enjoyed India Eisley performance I've seen other things she is done. I think she Improves every time I see her.