So! I just watched Monkey Shines.
It's Romero, I had to try it out.
Not bad. Sort of Freudian, though not in the 'kill your father to fuck your mother' sense. More like Lord of the Flies was Freudian. Kind of made me think of a recent article here about Rousseau vs. Hobbes (and also, in that case, about Red Dead Redemption and Fallout New Vegas). Definitely more on the Hobbes end of things.