Continuity mistake: After Ryan carjacks the lawyer for the first time a truck smashes into the security car blowing it up. Before the shot of the explosion the lawyer is sitting in the car without dark glasses. After the explosion it cuts back to the lawyer's car, however you can see in the rear view mirror that the person sitting in the driver's seat is wearing dark glasses.
Continuity mistake: In the final fight in the boathouse under the pier, Ryan and the two bad cops are fighting and knocking each other down but none of them get sand stuck to them, even though Ryan came straight to the boat house after just jumping in the water off of the pier. In fact, he doesn't even appear to be wet at all.