It is what it is. Either you like Zizek and his brand of philosophy or you don't. Or...you find his voice grating, which is completely understandable. I find him at least very interesting and I like the connections between popular culture and ideology, being somewhat of a Gramsci-fan myself. He looks at how films reinforce and sometimes undermine the dominant ideology of the Western world, which he identifies as capitalism. In Zizek's mind (I'm ascertaining), capitalism is the "ideology supreme" of our social, political, legal and cultural order. It defines our relationship to everything and everything is subservient: be it mundane social interactions, our conception of God and how we politically organize ourselves. He even looks at how films created in the Stalin-era Soviet Union reinforce worshiping Stalin and draws somewhat of a parallel.
Thought provoking, interesting and a good conversation starter. If you like documentaries, political science and philosophy, I'd recommend it.