Gene Maddaus Senior Media WriterVeteran film producer Michael Shamberg sued the Academy of Motion Picture Arts & Sciences on Monday, as he steps up his campaign to prod the organization to boost its social media presence.Shamberg, 75, has been publicly decrying the Academy’s slide into irrelevance with younger viewers for several months.An Academy member since 1981, Shamberg also has been working to try to get the Academy’s board to heed his warnings.