Friend is a South Korean movie released on March 31, 2001. It was made by director Kwak Kyung-taek. Jang Dong-gun and Yu Oh-seong played the lead roles in the movie. The movie is about 4 friends. It covers from their childhood to their adulthood in which they come into a conflict. The movie was almost filmed in Busan and Busan dialect became very sensational after this movie. A lot of actors and actresses in the movie are really from Busan so they have no difficulty in using Busan dialect. Even the director Kwak Kyung-taek is from Busan.