Quote Originally Posted by Lachlan Young
It actually went like this:

Bessie Braddock: Winston, you're drunk.
Winston Churchill: Bessie, you're ugly. But tomorrow I shall be sober!

Yep there is that too. Do a google search on WC and you'll find a undergrad's research paper that has both and quite a bit more. He used the one I quoted not in a movie or on stage, but to a person in public (I believe it was a movie head during the shooting of a film).