Add it up. As you might have guessed, however, a film that exploits violence isn't the kind of movie you'd want to take your family to see. Steve liked Shaft, although before it started he'd carped about the dearth of ideas in action movies, even quoting the late Gene Siskel who'd once said that when moviemakers had run out of ideas they'd just smash a car through a plate glass window. Shaft didn't have a car that smashed through a window, though a couple of times humans smash through plate glass windows. Later he quits the force by tossing his badge at a judge who has just imposed a ruling Shaft didn't like, the prongs of the badge sticking to the wall behind the judge's bench.
Shaft loosens up only marginally as the film goes on.
Roundtree turns up a couple of times in Shaft as Shaft's mentor in one of the two echoes from the 1971 film. The other is Isaac Hayes's catchy theme song which is heard again. One only wonders whether the movie would have been better for it. But the plot is a tired old thing that begs the audience to make great leaps of faith. The wealthy heir to a real estate fortune is also a violent bigot who kills a black man outside a busy restaurant where the streets are conveniently almost empty.