Once in Texas I met a former NASA Huston executive and later a Military Subcontractor because I was on the radio talking about UFOs and weird stuff.

He told me about how Stanley Kubrick was hired to fake Moon landings and the discovery of alien technology that would be leaked to the Russians, or if something failed, convince the public that their tax dollars weren't wasted.

In exchange for his services he'd be set up finacially for life, but also he received optics used for spy satellites and cameras used in U2 planes.

This guy seemed to know his stuff and years later I heard that Kubrick used these lenses for, "Barry Lyndon."

Here's a video on how director Stanley Kubrick was able to use natural lighting and candles in order to film the interior scenes and achieve a more authentic look for his 1975 film "Barry Lyndon."