Samuel L. Jackson is an absolutely brilliant actor. He could play any character and do it in such a way to make it believable. But. . . Here he is not believeable, owing much to the fragmented nature of the reality presented. A cop farts today and gets slapped with a lawsuit.
Reality check already.
Regardless, this movie will achieve success at the box office. Not as much success as it might. But it will achieve success. And it will find life after the mainstream theaters, owing to Jackson and Singleton. Make him more than Roundtree ever did.