I saw Borat with Lisa last night. It lived up to the hype; it was one of the funniest movies I have ever seen. Note that on Rottentomatoes.com it's currently at a 96% positive rating, which is pretty-much unheard of.
That being said, it has lots of cussing, more male nudity than Jackass 2 did, and it features one HELL of a long, vigorous teabag scene. But it was hilarious, and very smart. He isn't mean-spirited at all, but he succeeds in creating really biting satire and social commentary, and I haven't seen that combination very much previously.
Go see it tonight.