There are quite some weird stories that I have heard or read about Kubrick, most of them are very probably made up.
My favourite one is the following:
You know that, for Barry Lyndon, Kubrick used Zeiss lenses that he got from NASA in order to film the candle-light sequences without artificial light. Now those lenses are so special, so sophisticated and so expensive, for they were designed for satellites, why would NASA give them to Stanley Kubrick?
Well, because Kubrick, in 1969, apparently filmed (i.e. faked) the Apollo 11 mission on the sets of 2001. So he made a deal with NASA in exchange for the Zeiss lenses.
In some way, I wish it were true...