'70s country-rock legend's manager is a co-producer
                                
                                
                                    (Newser) -
                                    Selena Gomez has been lined up to play the lead role in a biopic of another singer of Mexican descent: Linda Ronstadt, one of the biggest stars of the 1970s.  Variety  reports that the movie is currently in pre-production, with producers including John Boylan, Ronstadt's longtime manager. Another producer...