This film has been labeled as Stone's worst.
Nothing, could be further from the truth.
The problem, i think, most critics had with the film, is that it lacks the social commentary and controversial nature of pretty much all of Stone's work - however, if you simply look closer, you'll see that there are tinges of the two.
Sean Penn gives one of his best performances as the jinxed drifter Bobby Cooper, Jenifer Lopez, gives her best performance by far and the supporting cast are ecstatic.
This movie is an absolute gas, the ending, the score and music, the warped cinematography (that obviously influenced SPUN) and performances are a riot, and far out of the box.
I like to think of this film as Kerouac meets Lynch, it's a story about one criminal's day in hell. And it works, from start to finish it doesn't fail to entertain or be intelligent. Like the majority of Stone's work. See it and you'll live it.