“ Van Daniken, author of 1968 bestseller Chariot of the Gods, is best known as the first proponent of the so-called ancient astronaut theory, which holds that aliens kick-started civilization on earth. “NASA and the Vatican agree that is almost mathematically impossible that we can be where we are today without there being a little help along the way,” Scott said. “That’s what we’re looking at (in the film), at some of Eric van Daniken’s ideas of how did we humans come about.