'Parasite' Series on HBO Eyes Mark Ruffalo to Star The network is planning a limited series based on the Oscar-winning film from South Korean director Bong Joon-ho. According to Collider, Ruffalo is in hot contention for the series. Sources say that Bong Joon-ho has contacted Ruffalo about the series and that he has expressed interest. HBO commented on the speculation. HBO comment, via Collider Bong Joon-ho will team with Oscar-winning screenwriter Adam McKay on the project. On Sunday, 'Parasite' became the first international film in history to win the best picture Oscar at the 2020 Academy Awards.