[1] In 2001, Park made his debut as a director and screenwriter with the short film Happy Death.
[2] While working on a story about a journalist, Park discovered the true story about a soldier named Yun Seok-yang, an army soldier serving in the Defense Security Command of Korea's Armed Forces.
In 1990, Yun left his military base and took a floppy disk with a secret list of important people which included the names of former presidents and religious leaders; previously it had been subject to investigations by the Defense Security Command.
Yun decided to reveal the contents of the disk at a press conference, believing it was the right thing to do.
[3] This story inspired Park to make a movie, called Moby Dick, about a journalist trying to uncover a secret organization that controls the government.