I love how Pike didn't play up Amy's mannerisms in the first act. She was still Amy and there are small little hints that let you know. The effect could have been a little bit ruined had she played it too on the nose.
My favorite scenes by her were her flashback to her and Nick's fight in the diary (the way she says "an inspiration" is award worthy on its own) and her and Nick's final confrontation. "I'm that ****."
