When Guillermo del Toro’s Blade II hit theaters 20 several years ago this month, it was a a great deal-needed vital and business hit for the filmmaker, chalking up $155 million worldwide and superior-than-common testimonials. This is not the story of that motion picture. It is the tale of one of these reviews—quite perhaps the worst motion picture review ever printed, at the very least in an outlet of take note. The outlet was Ain’t It Amazing Information, the primo change-of-the-century source for motion picture gossip, test screening leaks, and off-the-cuff criticism the author was the site’s founder and editor-in-main, Harry Knowles. “BLADE 2 is an R-rated movie,” Knowles wrote.…