Hyderabad, Sep 25 (SocialNews.XYZ) Telugu star Nani has showered praise on director Sujeeth's eagerly awaited action entertainer 'They call him OG', featuring actor Pawan Kalyan in the lead, calling the explosive action entertainer as the "Original Giant Blockbuster". Nani, who was among the first to watch the film, which has just released, took to his X timeline to shower praise. He wrote, "OG is ORIGINAL GIANT BLOCKBUSTER.