Visible crew/equipment: Between the beginning of the movie and the end of it inside of Jesse's shop when the camera is facing the entrance and Jesse's desk look real closely at the window reflection in the playroom with the children and you will a see a man wearing a white shirt holding a camera prompt against her desk.
Factual error: There's no way that that mail truck would be driven along Highway 1. Choosing that route more than doubles the drive time, turning a six-hour drive into 12-15 hours. They'd take Highway 5, which is fastest but boring for filming purposes.