http://www.youtube.com/watch?v=yKiUjVfCqrg
They're hilarious.
After formal introductions, Martin is intrigued that Mack has an autobiography out & Mack gets slightly annoyed so they have the following conversation:
Martin: Have you got an autobiography out?
Lee: Yeah I have & I've been shamelessly plugging it.
Martin: Fair enough.
Lee: Have you got a movie out?
Martin: Yeah I have.
Lee: What's it about?
Martin: It's a documentary about Middle Earth.
Lee to Graham Norton: We don't need you anymore.
He's right. If you keep watching the rest of it, you learn to watch out for Martin-Lee interactions because they're so funny.
Another segment has Martin explaining film-making terminology to us lay people.who may not be in on what they mean (re: wrap party & pick-up) so Lee gets in on it & decides to explain to us what a cinema is (like a TV but way bigger).
Between these two, they could probably run their own talk show