INDEPENDENT LENS Twin Sisters +ADD Aired: 10/21/201455:31Expires: 10/20/2015 Rating: TV-G In the Independent Lens documentary Twin Sisters, twin girls in China are adopted as infants by two different sets of parents — one from California, the other from a remote fishing village in Norway. The girls grow up knowing they have a twin living on the other side of the world, and although language is a barrier, the bond between them grows deeper.