In 2000 Jung had started to try his hand at directing. His first works were music videos for one of the top South Korean pop music group G.o.d.. In 2012, he directed and starred in the promotional commercial for cable channel XTM. And a year later, Jung was among four celebrities who directed a short film using smartphone Samsung Galaxy S4 with the theme "Meet a Life Companion." His short "Love" explored the feelings of first love, and recorded 1.8 million views on YouTube. He then directed another short film for Samsung Galaxy S4, this time for the project "Story of Me and S4." In Jung's short "Beginning of a Dream", Choi Jin-hyuk starred as an ordinary office worker who dreams of leaving his mundane existence and entering a world of fantasy; he is approached by a blue fish, rides a sports car at supersonic speed, sees a boy floating past holding a balloon, hangs out with a hippie band in their van, and meets himself as a young boy at a bus stop.