This cast is amazing: Sydney Poitier, Bill Cosby, Harry Belafonte, Flip Wilson, Richard Prior, and even Roscoe Lee Browne (who played Saunders in the comedy series "Soap") . I usually associate Poitier with his serious roles but here we see his comedy chops, and he is hilarious! The movie itself is a bit light on plot but is eloquently directed by Poitier. We're really here to see the kings of comedy show us how they became the super stars and there are some great bits, especially Pryor's less than honerable private detective who's got not time to for clues and all the time in the world for your money.
In the end you get a breezy comedy action movie which doesn't worry itself to much about logic and is just here to entertain.