Continuity mistake: In the scene at the end where they are finding out who the killer is, Joshua has lots of blood on his face. In next shot, there is less of it and then it disappears in the next shot. Then, there is lots of blood again.
Factual error: When Joshua and Il-sang Lee rush to the hotel to search for the stamps, they are in Clinancourt, which is a North suburb of Paris. In the next scene, we see them leaping into the train, and the station is 'Pyramides', which is a station in the center of Paris. They would have needed a 30 minutes ride and at least one train to change to get from Clinancourt to Pyramides.
Lewis Bartholomew: I was wrong about you, Mrs. Lambert. Meeting the widow of a man like Lake, well, I was expecting a siren, a harpy, a shrew. But you, you have decency, dignity, what my father called gumption.
Regina Lambert: I'm very touched. You are actually quite sweet for a stars and bars company man, aren't you?
Lewis Bartholomew: You've discovered my secret side Mrs. Lambert. Keep it under your hat. Boo.
Lewis Bartholomew: I want to make it perfectly clear that even if we wanted to, which we don't, we couldn't force you to do it. Your decision must be entirely your own, Mrs. Lake.
Regina Lambert: What decision?
Lewis Bartholomew: To work with us.
Regina Lambert: If you think I'm getting mixed up in this, you're absolutely bonkers.
Lewis Bartholomew: We want that money back, Mrs. Lambert.
Regina Lambert: I don't have it.
Lewis Bartholomew: Oh yes, you do. You have it. You just don't know you've got it.