One of the main characters jumps in a muddy ditch to dump drugs and is arrested. In jail you see a close-up of his Nike Air Max shoes. His shoes are stained, but the tongues of his sneakers are pretty clean; these should have been muddy too. In addition, apart from mud stained, his sneakers would have soaking wet, yet they are just stained, not wet. And you should hear squelching as he moves in wet shoes, but that is also lacking.