Moon (2009)
Was going to give this a pass until I noticed that it starred Sam Rockwell so thought I'd give it a chance despite modern sci-fi being pretty universally dismal.
Rockwell is the sole inhabitant of a mining base on the far side of the moon, nearing the end of a 3 year tour. When weird stuff starts to happen you wonder if he is cracking up or if it is real.
Not bad at all, keeps you guessing as to what's going on almost to the end. High production values and Rockwell is very good as always. Worth a watch.