One of my favorites not listed here is in Silence of the Lambs.
When Agent Starling first visits Dr. Lecter in the basement of the BHCI, some of his drawings are posted around the walls of his cell. She asks about them, and Dr. Lecter says, “That is the Duomo seen from the Belvedere. Do you know Florence?”
He’s hiding the answer that she, and by extension Jack Crawford, both want in plain sight. Jame Gumb, aka Buffalo Bill, is later found in Belvedere, OH.
The doctor does enjoy his little jokes.
