Paul Newman and Sidney Poitier playing in a Jazz band together and roaming around the streets of Paris is something that on paper should absolutely work. Throw into that mix a Duke Ellington score and a minor appearance from Louis Armstrong. This film should’ve been a big hit. These guys are suave, handsome, and two strong examples of the word “cool.” Not to mention it was shot on location in Paris. So what’s wrong? The script and cowardice on Hollywood’s part.…