Quote Originally Posted by gRomoZeka
I think it has nothing to do with Hollywood movies. It's a variation of popular sayings "меньше знаешь - крепче спишь" and "много будешь знать - скоро состаришься", IMHO.
No, I understand that Grom. But the way they said it is word-for-word from how we say it in English: "The less you know, the better." And really, like someone said earlier, in this phrasing, it really is spy-flick-schtick, rather than a deep philosphical proverb.