The story of how “2001: A Space Odyssey” came to be made is in many ways as epic as the events portrayed in the film itself—and until now, just as mysterious. In 1964, with “Dr. Strangelove” ready for release, Stanley Kubrick was uncertain about what his next project would be, and considered making a film dealing with several contemporary themes. It was only when he encountered Arthur C. Clarke that he decided to make a science fiction film. Yet it took more than four years for “2001: A Space Odyssey” to reach the screen—a productive and creative odyssey that involved experimentation, last-minute rethinks, strokes of genius, quarrels, ultimatums, feats of will, and mental breakdowns. Drawing extensively from never before seen material, including production documents and private correspondences, “2001 between Kubrick and Clarke” gives for the first time a complete account of the two authors’ creative collaboration; one which casts lights on their on-again, off-again relationship, as well as revealing new information about the genesis, production, and reception of the first and most important film about space, the origin of humankind and its destiny among the stars.