Moon, directed by Duncan Jones son of David Bowie, is a 2009 science fiction movie with a very small cast, in fact it almost entirely features one character with the only other human characters appearing on video (of which there are roughly four). This is because Sam Bell works entirely alone on the moon to provide energy for Earth with the aid of computers and a AI/robot called GERTY. Besides that he has no one but himself for company and himself to rely on 😉
