Kim Dong-won's directorial debut was a film that is a sequel to which 2001 film ?
Kim Dong-won (director, born 1962):  Kim's directorial debut – the comedy film "My Boss, My Teacher" was a hit with more than 6.1 million admissions, making it the fourth best selling film of 2006. My Boss, My Teacher: My Boss, My Teacher () is a 2006 South Korean film and sequel to the 2001 film "My Boss, My Hero".
My Boss, My Hero