"Your job as an actor is to find the reality, the vulnerability, the attitudes, and the complexities of the human being inside of all of that," she continued. "But then you do come across people who are almost sort of superhuman, and Catherine was like that. She was extraordinary. She held onto power and the throne during an incredibly difficult, dangerous time in Russia. For her to handle the whole thing as a woman and a foreigner was an extraordinary feat. It was an incredible honor to walk in her shoes for a few hours."