MODEL CHILD: Ralph Lauren’s fall Purple Label men’s campaign will feature a face that is both familiar and familial, at least to the designer. Andrew Lauren, his oldest son, will appear in ads, WWD has learned. While few details were available, the fall images mark the second time Andrew Lauren has been in one of his father’s campaigns. (He once modeled in RRL’s adverts.) Andrew Lauren has been keeping busy. In addition to this stint, he produced the soon-to-be-released comedy-drama film “The Spectacular Now,” based on Tim Tharp’s novel of the same name and directed by James Ponsoldt.