CB4 refers to “cell block 4”, the prison environment that brought together the characters of this mockumentary about a totally fictional rap group, with Chris Rock as the lead, that satirizes without mercy aspects of gangsta rap the way This Is Spinal Tap satirizes the behavior of rock bands and the documentaries that idolized them. The film includes the parodic testimonies of Halle Berry, Eazy-E, Butthole Surfers, Ice-T, Ice Cube and Shaquille O’Neal.