The supercop genre isn’t distinctly American in design, but we certainly lead the pack when it comes to the stylized activity of police in the line of duty, questioning perps and blasting holes in baddies. Perhaps this is why the bluntly titled “Drug War” is so compelling, taking the clenched-fist fight against crime to China, where matters of public protection are more reservedly severe. Twisting genre elements into a fresh pass at dirty business, the latest from acclaimed and prolific director Johnnie To manages to seize atypical nuances when it comes to the battle between good and evil, deploying ace tech credits to mastermind a sleek, scary look at the collateral damage of a seemingly futile conflict. Read the rest at Blu-ray.com