David Chase has gone from “The Sopranos” to taking a sixties-rock nostalgia trip with “Not Fade Away." It’s a film that knows its subject well enough, and even has E-Street Band member Steven Van Zandt to help pick the bluesy rock-infused soundtrack. And yet I don't know what I'm supposed to take away from the band focused on here. Doug (John Magaro) is a New Jersey kid inspired by The Rolling Stones, and girls, to start a band with