I had no interest in watching it, but as it turned out, this movie was great. It has all of your movie cliches, the gorgeous bachelor, the big fat party animal, the grizzled married man, the jewish germaphobe and the evil future brother in law trying to get the groom on film in compromising positions. While it does have every cliche in the book, it has heart and American Pie humor.
The plot is a man is marrying into a wealthy company and the future father in law likes the groom better than his current son-in-law. So that son-in-law throws him an all out-big money bachelor party that seems to last a week. He uses this time to setup the good guy groom in awkward positions. There are several chances and several misses, but before the movie gets stale he meets a woman that could change his good guy ways and make him cheat.
Not to ruin the surprises, but each of the movie's characters have their own memorable storylines with big punchlines at the end.
Great movie, great adult fun, lots of craziness and antics, plenty of nudity if that's your thing and lots of high priced locales.