2001: A Space Odyssey (film) essay "Odyssey of Stanley Kubrick" wrote, "Kubrick has conceived a film which in one stroke has made the whole science fiction cinema obsolete." Others credit "2001" with opening up a market for films such as "Close Encounters of the Third Kind", "Alien", "Blade Runner", "Contact", and "Interstellar", proving that big-budget "serious" science-fiction films can be commercially successful, and establishing the "sci-fi blockbuster" as a Hollywood staple. Science magazine "Discover"s blogger Stephen Cass, discussing the film's considerable impact on subsequent science fiction, writes that "the balletic spacecraft scenes set to sweeping classical music, the tarantula-soft tones of HAL 9000, and the
2001: A Space Odyssey (novel) trying to tell us something?" Clarke himself directly addressed the spelling issue in chapter 19 of "The Lost Worlds of 2001", explaining that he simply (and unconsciously) used the spelling he was familiar with from "The Conquest of Space" (1949) by Willy Ley and Chesley Bonestell, presuming that the "J" form is the German rendering of the Greek. The film "2010" was released in 1984 resulting in movie tie-in editions of both the "2001" and "2010" novels. At the time Signet Books reported that over 2.8 million copies of "2001" were in print and that "2010" was one of 1983's