Question: At which role the did the director of the 2007 South Korean crime thriller film starring Yunjin Kim and Park Hee-soon played before directing films?
Sentence (from "Diary of June"): Diary of June (; also known as Bystanders) is a 2005 South Korean mystery-crime film starring Shin Eun-kyung, Yunjin Kim and Eric Mun.
Relevant evidence: No