The best way for me to describe “The Hangover” is that it is wicked funny. Not once are the filmmakers ever afraid to break any particular taboos, and its setup is ingenious. While part of me wishes that I got to see it before the hype machine exploded and went into overdrive, this movie proved to be one of the best times I had at a theater back in 2009.

“The Hangover” stars Bradley Cooper, Ed Helms, Zach Galifianakis, and Justin Bartha as a group of guys who are on their way to spend a fun filled weekend in Las Vegas, Nevada. The groom, Doug Billings (Justin Bartha), is only a couple of days from becoming a married man, and his close friends and soon-to-be brother in law Alan Garner (Zach Galifianakis) take him out on the town to show him the time of his life while he is still a free man. They celebrate this moment together on the top of Caesar’s Palace where they are staying for the night with a couple shots of Jägermeister, toasting to an evening they will never forget. But it is no surprise that they do, and they have to retrace their steps in order to escape the craziness of their sudden situation.

Todd Phillips, who previously directed Will Ferrell to the Streakers Hall of Fame in “Old School,” uses “The Hangover” to continue his exploration of the lives of men who just cannot seem to grow up. Phil Wenneck (Bradley Cooper) is a schoolteacher, a married man and a father, and yet he seems the most eager of the four guys to live life to the max, free of all obligations. Stu Price (Ed Helms) treats this as an opportunity to escape his girlfriend of several years, who can never stand to have him kiss her I might add, and trick her into believing he is actually going to wine country in Napa County. For Alan Garner (Zach Galifianakis), this is just another place where he can be his usual socially maladjusted self as he is the man child character who easily creeps people out regardless of whether or not he realizes it.

By putting us in the vantage point of Phil, Stu and Alan, “The Hangover” turns into an unpredictable comedy as we go along with these three men and discover what shenanigans they ended up getting themselves Looking back, I am not sure how much these events would stand up to logical scrutiny, but this movie is so much fun, WHO CARES?! It is not like we are watching a “Saw” movie for crying out loud! What I love about “The Hangover” is how it keeps building up from one utterly bizarre situation to another, and just when you think things can’t get any worse, they do.

I refuse to spend this review ruining the best parts of the movie for you, so let us just get to the talent involved. Bradley Cooper got a great opportunity to shed his bully image which he perfected in such movies as “Wedding Crashers.” Well actually, he did not permanently shed it here as his character gets people to do things they would not otherwise do under normal circumstances. But his role here in “The Hangover” succeeded in breaking him out of his typecasting dilemma of being the snobbish bully as he gives this movie its coolest character.

Ed Helms has appeared on the American version of “The Office” and was a correspondent “The Daily Show” with Jon Stewart. As Stu Price, he gives us this movie its resident wimpy nerd character, a common stereotype in comedies. Indeed, any actor in this role could just get away with simply playing the character as a pussy-whipped bitch with the shy and awkward smiles, letting the glasses define them on the surface to where they are easily identifiable, and wearing tidy clothes in the most inappropriate of venues. The fact Helms never stoops to playing all these behaviors and appearances makes his performance come off really well. We have a good idea from the start of where Stu will end up by the movie’s end, but Helms takes him from being a wimp to a stronger man in a very believable way, and he makes Stu ever so endearing as a result.

Hey wait a second… Let’s talk about the sexiest character in “The Hangover.” She is an escort and exotic dancer named Jade, and she is played by irresistible Heather Graham. It has now been a many years since she burned herself into our collective consciousness as Rollergirl in “Boogie Nights,” and I was thrilled to see her here. No one should forget what a great actress she is, and many projects she has appeared in over the years have squandered her talent. The Hangover” shows she has not lost an ounce of her talent and never will. After all these years, she is still an actress who deserves your attention.

As Alan Garner, Zach Galifianakis gives us someone whose sanity seems to be quite questionable, and what he says about himself hints at just how screwed up he really is. You can only guess at what kind of character he really is, and the rub there is what you say about him could end up saying more about you. Alan Garner turns out to be one of the more unpredictable characters in movies to where you almost live in fear of what he might do next, and this is even if he has you laughing your ass off throughout. The way he bonds with these guys is anything but healthy.

In addition, “The Hangover” features some great cameos throughout. Seeing Mike Tyson rock out to Phil Collins’ “In The Air Tonight” is a comic highlight. I also loved Jeffrey Tambour who is always a deadpan delight in everything he does, and as Alan’s father, Sid Garner, he personifies the knowledge of how what goes on in Vegas really needs to stay there, seriously. And Ken Jeong, very memorable as a doctor in “Knocked Up,” is a gas as crime boss Mr. Chow.

“The Hangover” is not politically correct to put it mildly, but in the end, this is just a movie you should sit back and have fun watching. Years after its release, it is still a blast to take in.

* * * ½ out of * * * *