"Righteous Kill"- to watch or not to watch?

If "Righteous Kill" starred any two other actors on earth, we could call it what it truly is -- a formulaic mash-up of every maniac-on-the-loose cop movie ever made. If it only boasted one of its leading men, we'd note how often he's played that role before: the quintessential tough guy, loose cannon, thick-tongued New York cop. But "Righteous Kill" stars both Al Pacino and Robert De Niro, and slack must be cut.
- Salon movie review