Is any part of Borat not scripted?

Oddly timed, but I was reading the latest issue of Maxim (US version) last night and the "interview" with Borat there was pretty much identical, both in questions and answers as Borat's "interview" on the Today Show this morning.

The Ali G show tended to get a bit long in the tooth, is this going to carry over into the movie where we've seen all of the potentially humorous scenes in the previews?