Yoo Ha, is a South Korean film director, screenwriter and a contemporary poet, he directed the critically acclaimed film,  "Once Upon a Time in High School" (2004), is a South Korean drama film, the background of the film is set in a high school in which country?
Yoo Ha Yoo Ha (; or spelled Yu Ha; born February 9, 1963) is a South Korean film director, screenwriter and a contemporary poet. He directed the critically acclaimed films "Marriage Is a Crazy Thing" (2002), "Once Upon a Time in High School" (2004), and "A Dirty Carnival" (2006). The latter is a gangster movie with allusions to Martin Scorsese films like "Gangs of New York", "Mean Streets" and "Goodfellas".
A Dirty Carnival A Dirty Carnival (; lit: "The Mean Street") is a South Korean neo-noir action thriller film directed by Yoo Ha. It is Yoo Ha's fourth feature film, his previous work being the 2004 drama, "Once Upon a Time in High School".