Johan Renck. Director: Chernobyl. Johan Renck is one of the most respected and sought after directors of commercials and music videos today, so much so that the French magazine CB News dubbed him "the number one director of commercials and music videos in the world".His directing career started in 1992 when he joined the production company Mekano Film and Television in Stockholm, Sweden. In 1994 he left Mekano to join...