def poster
      src = doc.at("#img_primary img")["src"] rescue nil
      unless src.nil?
        if src.match(/\._V1/)
          return src.match(/(.*)\._V1.*(.jpg)/)[1, 2].join
        else
          return src
        end
      end
      src
    end
def poster
      src = doc.at("#img_primary img")["src"] rescue nil
      unless src.nil?
        if src.match(/\._V1/)
          return src.match(/(.*)\._V1.*(.jpg)/)[1, 2].join
        else
          return src
        end
      end
      src
    end
Get movie poster address
 @return [String]