misd-86934 — 9 years ago(December 31, 2016 12:25 PM)

I thought he said his sister's maiden name was Spencer when he first ran up to her on the sidewalk? I also thought he said his last name was Spencer in the hotel room and on the train, but if his last name was not Oakley, why wouldn't Charlie give him a funny look when he told the cop it was his last name and the detective called him that?
Can someone clear this up for me. I love this movie, but some things are very confusing about it, like the man in the east with the CO initials.