Steven Spielberg inherited this project from Stanley Kubrick, who tinkered with it for nearly two decades before his death in 1999. But it could just as well be an offshoot of BLADE RUNNER (1982), driven by the same fundamental questions: How perfectly can we duplicate ourselves in synthetic beings before we must wonder what makes us human and them not? And having created them, what do we owe them? In the future, weather patterns have run amok, the seas have risen to swallow coastal cities and Earth's battered ecosystem can support only so many of us. The poor have drowned and starved; in their place, robots "mechas" who consume no resources cater to the...