Audio problem: When Mike and Marcus are driving in Marcus's car, just before they sing Bad Boys, in the shot over Mike's shoulder we see that what he is saying does not match the movement of his mouth.
Audio problem: When the bad guys attack the main girl's house, one is heard to be pumping his shotgun between shots. The gun is a SPAS-12, and the pump-action is only used when firing non-lethal rounds; otherwise it fires semi-automatically.
Audio problem: When the Captain is on about the Heroin being stolen he says something along the lines of "we got nothing, and he left us a big f*** you". When he says "we got nothing" his mouth doesn't match the words on the audio. (00:14:25)