I am a big comedy fan, but lately I have been highly disappointed with Hollywood's take on the genre. However, The Hangover is a breath of fresh air, in an ocean of bad and cheesy comedies. It is genuinely funny! And what I like most is the fact that you need to watch the entire thing, in order to know how it's going to end (this is a quality most movies lack nowadays).
The dialog is hilarious, the four lads are all so wonderfully weird and twisted, the plot is full of suspense and when you think you've seen it all, something bigger and badder happens.
It's a really great movie!