The first thing I thought as I was watching this movie was “Dang, Robert De Niro, Al Pacino, and Brian Dennehy sure have gotten old!” (But then, I have, too.) The second was that the big “twist” ending they were setting up sure was obvious.
That said, watching De Niro and Pacino as tough New York cops hunting a vigilante serial killer can’t help but be mildly entertaining for a couple of hours. The presence of Carla Gugino as a crime scene tech doesn’t hurt anything, either. There’s an occasional funny line and a few decent action scenes. But RIGHTEOUS KILL never really rises above the level of a minor, very generic film, watchable but nothing more.