Shaft (2000) is a movie starring Samuel L. Jackson, and featuring cameos by the directors of both the original Shaft and Shaft (2000), and Richard Roundtree, the original Shaft, who plays Shaft's uncle.
Jackson is clearly an inspired casting job for the film. He plays the Shaft role, in my opinion, better than it was played by Roundtree. He has much more of a badass quality and after all, they say that cat shaft is a bad mother...
The plot revolves around a rich whiteboy who murders a black man but has the money to get off, posting bail and then skipping to Switzerland. Shaft gets kicked out of the precinct for punching the whiteboy while he is in custody and eventually quits when the kid is given bail again after coming back from his European Vacation.
The whiteboy falls in with a drug dealer and Shaft has to work against that deadly combo and a few crooked cops in order to find a waitress who was a witness to the murder.
The thing ends wonderfully and Lynn Thigpin, playing the victim's mother (I think), makes a strong plea for justice. Overall the film is an excellent action flick.