Bong Joon-ho
Principal photography began on April 22, 2016 in Seoul, South Korea. It moved to Vancouver, British Columbia, Canada for more filming on July 31, 2016. Director Bong Joon-ho visited a real Colorado slaughterhouse to prepare for the film's own slaughterhouse sequence, an experience that converted Bong and producer Dooho Choi into temporary vegans.