"CB4" is a profoundly confused movie, combining rap music with a satire of the world of rap. Working both sides of the street, it gets caught in traffic. The film stars Chris Rock and Phil Hartman from "Saturday Night Live," but it doesn't have SNL's smarts -- and worse, it doesn't have any sense of what's funny. On a structural level, it's incompetently written and directed.
The story involves three friends from the fictional California town of Locash (get it?), who dream of breaking out of their middle-class backgrounds and becoming rap stars. They get thrown out of the local rap club, run by a gangster named Gusto (Charlie Murphy). And then, trying to get back in Gusto's good graces, they coincidentally turn up at the club at the same time as a swat team.