Clay saw it and didn't like it and thought it had a disappointing ending. He says the movie is thought-provoking, but in a wasted, who-gives-a-fuck kind of way. Mental masturbation without the visual or physical kind; he would probably ask for his money back but he saw it for free because he knows people.
Clay wants to send Ridley Scott an invoice for his personal time spent watching - and mental space inadvertently remembering - that dreck.