Jang Yeong-Sil (Also Known As: Jang Youngsil: The Greatest Scientist of Joseon) is a Drama, History film directed by Kim Young-jo and written by Lee Myung-hee. It was released on January 2 2016. It stars Il-guk Song, Sang-kyung Kim, Yeong-cheol Kim. The film’s content is about Jang Yeong-sil (Song Il-gook), a popular scientist of Joseon in XVth century…