Emiliano Granada After having won the Silver Biznaga for best documentary director at this June’s Malaga Festival with “El Father Plays Himself,” which screens now at the Spanish Screenings, director-cinematographer Mo Scarpelli is leaping into fiction with her new project, “A Song That Slays.” Following a number of eye-catching doc titles that have always generated festival buzz whether “El Father Plays Himself” at last year’s Visions du Réel, “Anbessa” at the 2019 Berlinale and Frame by