I don't know what comment to give on this movie, but there is one thing I mind very much: from what I thought, the HAL9000 should have some sort of emotion, and it looks like the movie is trying to emphasize that. I generally don't kill people when someone made a mistake. Then why those two human crews suddenly decide to shutdown the computer? I mean, just literally before they came up with that idea, the HAL9000 clearly talked about this issue, and the human crews failed to find the loophole in the sentence: while the software and the design can make no mistake, but it doesn't mean the human who makes this computer won't make mistake. That physical mistake is very likely to cause HAL9000 to malfunction. And to me, it shouldn't make a lot of mess to let HAL9000 know itself.