Needs more giant babies

Elements of Moon I had already seen/read/encountered:

Solaris (the book; haven't seen either movie version yet)
2001: A Space Odyssey (I'll admit it: I've never seen the whole thing)
Never Let Me Go
ETA: and Do Androids Dream of Electric Sheep?/Blade Runner, of course.

Non-spoilery things about Moon I actually liked:

The silly "turning on the music every time the other person tries to talk" bit
Kevin Spacey as Gerty — perfect voice casting
Uh… good set design?

I know I say this all the time, ...