Snowpiercer is co-written and directed by a teenager.
Bong Joon Ho ( , [ poːŋ tɕuːnho → poːŋdʑunho ] ; born September 14 , 1969 ) is a South Korean film director and screenwriter . Snowpiercer . The film is directed by Bong Joon-ho , and written by Bong and Kelly Masterson .