Lee Joon-ik is a South Korean film director and producer. He is best known for directing and producing King and the Clown (2005), one of the highest grossing Korean films of all time. Other notable films include Sunny (2008), Hope (2013), The Throne (2015), Dongju: The Portrait of a Poet (2016), and The Book of Fish (2021).

Radio Star is a 2006 South Korean comedy-drama film directed by Lee Joon-ik, starring Park Joong-hoon and Ahn Sung-ki in a story about an aging, has-been rock star who, plagued by debt and run-ins with the law, unwillingly begins working as the DJ of a small radio show in the countryside, with his loyal manager of 20 years in tow.