When CB4 lampoons the rap industry (and its image in white society), this movie really rolls. When it goes back to the 'plot' of the film (involving some jailed gangster and his revenge on CB4), you might have to fight to stay awake. Thankfully, the first hour of the movie is content to be a satire, and takes many well-aimed shots at 'gangsta rap' and the stereotypes it perpetrates. However, as soon as CB4 begin to wonder what they've become, you might want to hit the ol' fast-forward button. (Melodrama and cliched plot are murder for satires.) Chris Rock is funny as always, and the rest of the cast is surprisingly solid.