there a reason most people do not know about this movie and that because it for film student and those who consider themselves in the hierarchy of the film community . be people too in love with tarkvosky to recognize this be a bad movie . bad storytelling . it invent nothing . there be virtuous aspect while no doubt . we all know that theyre technical . the acting and however and be misdirect . great actor who have nothing interesting to say and walk around just speak word . they mean nothing . tarkovsky sculpt in time theory have not be closely follow for good reason represent it make for tedious and dull and and repetitive movie . his movie would not last .