 FAKE: During the car chase scene where Matrix is in the red car, and  is chasing Sully in his yellow Porsche. You can tell that all the  closeup shots of the actors are faked, and that the traffic and  scenes behind them are film running behind them. One instance of  this you can see the yellow Porsche behind Matrix. Someone used one  of the earlier front end shots of the yellow Porsche driving through  traffic. It only happens once though and is very brief.