This formula cop-buddy actioneer has some funny lines and well-choreographed martial arts battles, but Chris Tucker’s shrill version of Chris Rock is an acquired taste, much like rap music or beef’s tongue. As a comic and an actor his delivery is still a bit forced. And he never, absolutely never, shuts up. Chan, on the other hand, has pitch-perfect timing both with a funny gag and his ballet-like karate routines. Unfortunately, the film has several gratuitous obscenities and expletives. And at one point, we hear one misuse of God’s name uttered by Chris Tucker. There is also one in the closing credits.