Who were the co-writers of a 2017 action-adventure film that was directed by Bong Joon-ho?
Bong Joon-ho Bong Joon Ho (, ] ; born September 14, 1969) is a South Korean film director and screenwriter. His films include South Korean hits "Memories of Murder" (2003), based on a true-life serial murder case, monster movie "The Host" (2006), and his first English-language film, science fiction adventure "Snowpiercer" (2013). His latest film is "Okja" (2017), a South Korean-American film, which competed for the "Palme d'Or" in the main competition section at the 2017 Cannes Film Festival. "Okja" was subsequently released by Netflix on June 28, 2017.
American Dragons American Dragons (also known as Double Edge) is a 1998 action crime thriller film  starring Michael Biehn, Park Joong-hoon, Cary-Hiroyuki Tagawa, Don Stark and Byron Mann. It was directed by Ralph Hemecker, written by Erik Saltzgaber and Keith W. Strandberg, and produced by Brad Krevoy.