Wadsworth: [shouting] That’s what we’re trying to find out! We’re trying to find out who killed him, and where, and with what!
Professor Plum: There’s no need to shout!
Wadsworth: [shouting louder] I’m not shouting!
[Guests stare at him pointedly]
Wadsworth: [shouting] All right, I am! I’m shouting, I’m shouting, I’m shout…
[candlestick falls from above and hits him on the head]
Wadsworth: [shouting] That’s what we’re trying to find out! We’re trying to find out who killed him, and where, and with what!
Professor Plum: There’s no need to shout!
Wadsworth: [shouting louder] I’m not shouting!
[Guests stare at him pointedly]
Wadsworth: [shouting] All right, I am! I’m shouting, I’m shouting, I’m shout…
[candlestick falls from above and hits him on the head]
Wadsworth: Professor Plum, you were once a professor of psychiatry specializing in homicidal lunatics suffering from delusions of grandeur.
Professor Plum: Yes, but now I work for the government.
Wadsworth: So your work hasn’t changed.
Pretty much every line in that movie is quotable.