During one of the Sci-Fi channel's many "Planet of the Apes" marathons, I caught this little making-of special that covers the various "Apes" movies. I thought it was an intriguing look at the first movie franchise to really milk the cow dry. Good narration by the late Roddy McDowall, good film series (the first three, anyway...), worth a watch if this happens to pop up on TV again.
Review of Behind the Planet of the Apes
