From WENN.com

""It was incredible, absolutely real and I would completely forget it was Tony in there. At the end of the day when he took off his face and there would be Anthony Hopkins, I was like, 'What the hell are you doing here? You're in this movie? Really?' Tony became a stranger to me and I really only knew him as Hitch."" Dame Helen Mirren was impressed with Sir Anthony Hopkins' transformation into Alfred Hitchcock for their new movie Hitchcock.