As promised to some folk, what follows is an awesome documentary made for the BBC in 1972 called "Reyner Banham Loves LA" which I first watched in my Los Angeles in Film class freshman year. It is spectacular. Please note the Shaft-esque music. Also, I am in the process of reading Banham's Los Angeles: The Architecture of Four Ecologies and I highly recommend it.
"And you might wonder what I am doing in Los Angeles, which makes nonsense of history and breaks all the rules. Well, I love the place with a passion that goes beyond sense or reason."