If you're looking for a sort of tribute for contemporary French humor mixing a little bit of Les Inconnus with the Guignols de l'Info version of Stallone among other influences, channeled in a film utterly easy to go through with excellent pacing and adequate structure with no relent on the idiotic humor and few breaks if any... then look no further.
This is dumb enough to make you actually enjoy it, with that hint of cleverness ever present from scene to scene and gag to gag. In short, this is wit serving the purpose of idiocy. The viewer just needs to lower their guard and let go of their inhibitions, and level with what's going on in front of them. There's real inspiration behind the bits and the movie doesn't just settle for being a series of blatant caricatures without purpose.
Interestingly enough Michael Youn doesn't just star as the lead character, he also directed and wrote this thing. Which is quite a trick he pulled off as the end result is really a well made and quite frankly enjoyable piece of moronic entertainment which, if you have a little time...why not.
The songs are catchy and believable. The movie doesn't linger and quite likes its transition-less edge. It's dumb as hell, sure, but who isn't dumb as hell at least part of the time: give it a go.
