Love the movie, fantastic, one of my favorites.
Haven't watched it in several years before today and I'm seeing Amy in Norville's office trying to pull a fast one on him. She convinces him she's from Munsey and that's a bright idea, but how did she know he was from there?
"GO Eagles!"
It's never explained; the only way I can think of is that she must have gotten it from Paul Newman's character as, to our knowledge at least, he was the sole person in New York who knew where Norville came from. And it's Muncie btw, not Munsey.
"facts are stupid things" - Ronald Reagan
It was in his planner. Next time WATCH the movie.
"I will not go down in history as the greatest mass-murderer since Adolf Hitler!" - Merkin Muffley