The basic concept involves, as you've undoubtedly heard, Sacha Baron-Cohen (with the assistance of a team of "producers") gulling various Americans into believing that he is, in fact, a somewhat out-of-touch Kazakh journalist making a documentary for Kazakh consumption only, asking them a few basic questions about life in America, easing them into more and more absurd territory, and then keeping just the last bits (having made sure that they signed a release form well in advance) and editing them into a road movie recounting a journey from New York to Los Angeles. Already he's possibly being sued by a group of fratboys who claim that they were induced to make arses of themselves under false pretenses (good luck with that one!) and the residents of a dirt-poor Romanian village that stood in for Borat's hometown, who didn't like being paid £3 each and then described as rapists, not to mention former unintentional internet celebrity Mahir Cagri who's pissed off that Cohen took his shtick and made it profitable.
Fact: Borat's "Kazakh" greetings are in fact Polish ("Jagshemash" = "jak sie masz", or "how do you do"), though the longer dialogue is in Hebrew, Yiddish and Armenian.
I'm still not sure how much of the scene at the end with Pamela Anderson was staged.
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