Maybe Matt is using the car crash as a metaphor for a failed summer relationship? In that case, "extras get on the set" might refer to the characters looking for new lovers after the crash (end of their relationship with each other) as a way to move on.
Maybe Matt is using the car crash as a metaphor for a failed summer relationship? In that case, "extras get on the set" might refer to the characters looking for new lovers after the crash (end of their relationship with each other) as a way to move on.