This is very high on my list, and for many reasons, of all the sci-fi I have seen in this exercises, Moon brings the most classic material to the table. It's well acted and has a plot the keeps one entertained, it does suffer from a few gimmes, where the plot got thin or was handed out, but none of this really hurts the story. In the end it makes its statement as all good sci-fi does, and then flies out the airlock with a giggle. Go watch it already.Seconded, for the most part. I didn't really feel like the plot went thin, but I do understand the criticism. I got into a fight with an English teacher once (a few times, actually), trying to say that sometimes something is what it is. Something maybe be just as simple as it is, or as obvious as it is, and that's okay. With this movie, I think that pushed the focus of the movie further onto Sam Rockwell's reaction to the plot.
This movie really was Sam Rockwell's, and he carried it brilliantly. He's one of my favorite working actors, but will never get the credit he's due, because his looks are so ... not A-list, and definitely not leading actor. He delivered on Moon, though, and he's done it before. If you haven't seen them, check out Confessions of a Dangerous Mind and Choke. Box of Moonlight is another favorite of mine, from his earlier days (part of that mid-90s indie film explosion that was so awesome). Also, look for him in a tiny part next time you watch Ninja Turtles.
The movie really does reach into the scifi classics, too. The most obvious is a big slice of homage to 2001: A Space Odyssey, in the form of the robot. The robot was, by the way, brilliantly written and acted by Kevin Spacey. It plays a delicate and subtle game around corporate asshole-ness, in the model of Alien and Rollerball, though... and the territory has been gone over so many times, I think they really played with it in a new and brilliant way. Very, very clever.
Yeah, go watch it already.
Male English Professor Syndrome (MEPS): A defense mechanism used by people to overcompensate for spending all their time doing stuff that doesn't actually matter, particularly academics working in the arts or humanities. Presents as an insistence to analyse art, literature and film to the exclusion of aesthetic appreciation, and an inflexible insistence that disagreements must be resolved through rational discourse. Early research suggests a cause in "method envy," in which study of fundamentally subjective subject matter leads to resentment and an attempt to emulate the hard sciences by making art, film, and literature equally boring and even more obnoxious. 80% of cases present in males.