Bulletproof

Bulletproof is a movie starring Damon Wayans, Adam Sandler, and James Caan. Two criminals, Keats and Moses, end their friendship, when Keats turns out to be an undercover cop. Many years later, the two are forced to work together...
An undercover police officer named Rock Keats befriends a drug dealer and car thief named Archie Moses in a bid to catch the villainous drug lord Frank Coltan. But the only problem is that Keats is a cop, his real name is Jack Carter, and he is working undercover with the LAPD to bust Moses and Colton at a sting operation the LAPD has set up.