Patrick Frater Asia Bureau ChiefAfter flying into Cannes to open the festival in Korean on Tuesday night, “Parasite” director Bong Joon-ho took a trip down memory lane.Speaking at an on-stage interview Wednesday in front of a public audience, who accorded him a standing ovation on arrival, Bong discussed his early cinema experiences, the good and bad sides of video streaming and his obsession with mass murderers.“I had no idea that ‘Parasite’ would be a such a global hit.