The Restless is a 2006 South Korean period fantasy film directed by Jo Dong-oh, starring Jung Woo-sung and Kim Tae-hee. The film's Korean title, Joong-cheon, is literally translated as "Midheaven". Demon Empire is an alternative English name for the film.

Jung Woo-sung is a South Korean actor and the first Korean UNHCR Goodwill Ambassador. Jung started his career as a fashion model, rising to stardom and teenage cult status with the gangster film Beat (1997), for which he won Best New Actor at the 17th Korean Association of Film Critics Awards.