Biography
Im Joon-hyung is a South Korean screenwriter, also credited as Lim Chun-hyeong or Joon-hyung Im. He co-wrote the screenplay for the film Oldboy (2003), directed by Park Chan-wook.
His other credited work includes the screenplay for Ashfall (2019). He is listed as the original film writer for the 2013 American remake of Oldboy.
