Claim: Snowpiercer is co-written and directed by a teenager.
Evidence: The film is directed by Bong Joon-ho , and written by Bong and Kelly Masterson.
Bong Joon Ho -LRB- , -LSB- poːŋ tɕuːnho → poːŋdʑunho -RSB- ; born September 14 , 1969 -RRB- is a South Korean film director and screenwriter.