In the party scene at Andre's house, one of the background actors, William Vidrine, can be seen beside the driver's door of the Mustang, and walking with another background actor just behind Cal. A few moments later, when Ashby takes Cal's taxi and Cal runs out to the street, the same background actor can be seen walking up the street with a female. It was about 4am by that point and most of the other background actors had left, so he had to be used in another position.