references to other films - mild spoilers
I'm kind of surprised no one has brought this up yet. There were some nice allusions to other films.
I picked up on these...
One Flew Over the Cuckoo's Nest - several asylum scenes
Invaders From Mars - The ship lands behind a fence, behind a wooded area -- very clearly imitating the most familiar scene in the 1953 version of Invaders From Mars.
Close Encounters of the Third Kind - the musical tones, as well as the spaceship in the end.
Also there were space scenes clearly made to be similar to some of the standard spaceship-in-space shots that have become so common ever since Alien or thereabouts.
Did anyone spot more?
"The more you drive, the less intelligent you are"
-- Repo Man