In the scene of Old School where Frank is streaking, his wife is driving by with her fiends in the car with her. They stop to make Frank get in the car. One of he girls in the back seat is wearing a black hat. She is the youngest looking girl in the car. Frank gets in and the shot goes from the back seat onto the front seat and then in a matter of a second back to the back seat again and the girls hat is off, and then back on again in a different shot.