“When Kratos rips a god’s head off and pokes the back of it with his finger to make him scream/use him as a lantern, I laugh because despite the “realism” of the graphics, it’s ridiculous. On film, live-action, it’d probably be awful. Similarly, most of the game involves Kratos going somewhere and killing something in some absolutely grisly way, usually for the crime of being between Kratos and what he wants. That makes for fun video games, not compelling cinema.”
Go here to see the other reasons.