Back story, I've always loved to read, and by the time I was eight, I was diving into easy-to-read mysteries, as well as fantasy and sci-fi books. I had started devouring the Lucky Starr science fiction books that were written by Isaac Asimov, though through the first few books in the series he used the pseudonym, Paul French. Another of my favorite authors was Arthur C. Clarke and if my memory is correct, I had read an article in Boys Life magazine where Clarke referred to a movie coming out later in 1968, which was based on some short stories he had written a few years earlier.
That movie, 2001: A Space Odyssey.