I must admit, I went into this expecting a raunchy, unfunny, infantile Judd Apatow-type attempt at comedy. Instead, director Todd Philips has taken a script credited to Jon Lucas and Scott Moore, and made a creative, entertaining spoof of four guys having a bachelor party by going to Las Vegas where they get more than anyone could have expected.
Doug Billings (Justin Bartha) is the one getting married. He has two good buddies, Phil Wenneck (Bradley Cooper) and Stu Price (Ed Helms) who join with buddy wannabe Alan Garner (Zach Galifianakis), a fat, bearded weirdo, to take him for a bachelor bacchanal to sin city. What ensues is beyond the realm of anyone’s imagination (except Philips, Lucas and Moore). Instead of a silly story of beer-commercial types trying to act like real people, this is an hilarious adventure as things turn from bad to worse for the quartet (well, actually a trio because Doug disappears near the beginning, and the rest of the film consists of the other three trying to find him, and determine what actually happened). Although the main cast consists of a bunch of unknowns, Heather Graham and Mike Tyson do show up during the proceedings.
What happens is so preposterous that to tell any part of it risks ruining the fun. Even though it is raunchy, and there are some scurrilous scenes, it is still funny and very entertaining.