"Of course, the whole point of a Doomsday Machine is lost, if you keep it a secret! Why didn't you tell the world, eh?" -- Dr. Strangelove (played by Peter Sellers)
"It was to be announced at the Party Congress on Monday. As you know, the Premier loves surprises." -- Ambassador de Sadesky (played by Peter Bull)
(From Dr. Strangelove, or: How I Learned to Stop Worrying and Love the Bomb, which premiered 1964-01-29 (and someday I must get around to seeing it)