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) movie frames show that the movie monolith has dimensions approximately in the ratio 0.65:4:9 or 1:6:14. In the book, HAL became operational on 12 January 1997, but in the movie the year is given as 1992. It has been thought that Kubrick wanted HAL to be the same age as a young bright child, nine years old. The famous quote that opens the film sequel ""—"My God—it's full of stars!"—is actually not in the "2001" film, although it is in the "2001" book. The name of the Saturnian moon Iapetus is spelled "Japetus" in the book. This is an alternative