Ya know the old adage "If it ain't broke, don't fix it"? Well, nothing may say that more than Hangover 2.
In the sequel, the Wolfpack (minus Doug... again...) is lost in Bangkok after Stu's "bachelor party" goes horribly wrong and they must find his bride-to-be's brother.
Literally, take the first one, replace the tiger with a monkey, the stripper with a Thai stripper, and Doug with the new brother and you have #2. I will say, however, that I very much enjoyed this movie. I laughed the entire time at all the same crude jokes as the first one. From seeing Chow's neked groin again to Stu singing a little diddy about the fiasco to somebody finding pictures of the night at the end (only on a phone instead of an actual camera). The formula was exactly the same and thus, extremely predictable but it did manage to get those laughs in all the same.
There's really not much to say about this one. If you enjoyed the first one, you will enjoy this one. If not, you should stay away from it. It really is that simple.