Near the start when the bus gets blown up, just before Chris Tucker pops up from behind the seat, when the two frenchmen do the hug and kiss thing, you can clearly see one end of the hand cuffs is attatched to one of the guys wrist, while the other end dangles freely. After Chris jumps up and the other frenchman points a gun at him, he puts his hands up and HEY! the hand-cuffs are on him now also!