Drug War is a Chinese-Hong Kong action thriller film directed and produced by Johnnie To. The film stars Sun Honglei as Police Captain Zhang, who partners with a drug lord named Timmy Choi (Louis Koo) after Choi is arrested. To avoid the death penalty, Choi agrees to reveal information about his partners' methamphetamine ring. Zhang starts to harbor doubts about Choi's honesty as the police begin to take on the drug ring. The film premiered at the Rome Film Festival on November 15, 2012. It has received positive reviews.