This film was selected as the official Korean entry for the Best Foreign Language Film award at the 79th Academy Awards. The runners-up were Kim Ki-duk's Time, and the horror comedy The Host.
In 2006, this film became the highest grossing Korean film to its date selling over 12 million tickets (with a total gross of over US$70 million) and surpassing the previous record holder, Taegukgi (2004). Its box office record was broken later in the year by Gwoemul (2006).
Baek Seong-Hyeun was the final candidate for the role of Gong-Gil.
Based on a Kim Tae-Woong's play of the "Yi".