In May 2000, he starred in the third film "Heart of Our Lady" directed by Shang Hong. The following year, he starred in Park Chan-wook's first novel "Jealousy is My Strength", which is a story about desire. Received great praise.
Seung Geun Moon not only engaged in film creation, but also actively participated in the work of Busan International Film Festival, and launched a campaign to protect and develop the film system.
1999 founded a film company with another partner, and also hosted a TV program called IWantToKnow, which was highly rated.
In 2002, he became an outstanding local political figure. He and producer Ming Kainan were in charge of the network support activities of the current South Korean President Roh Moo-hyun. Lu Shengli became an influential political figure.
After leaving the film industry for two years, in 2005, Seung Geun Moon starred in the first film directed by actress Pang Enjin.