Anger
I just saw this movie for the 2nd time with some friends. I enjoyed it all the more because I could look for all the delicious little details that got past me the 1st time. What fun.
I thought Amy Adams did a fabulous job. One part that stood out to me was when she has an epiphany of sorts when she gets angry at Robert. She gets mad and realizes this is a new emotion for her. She goes from anger and frustration to sudden revelation of this new emotion- savoring it, rejoicing in it, and the looking longingly at Robert at the end of the scene.
A lesser actress would not have handled these emotional changes as believably as Ms Adams does. Bravo.