Complex sentence: Lee acted as the assistant director on the South Korean omnibus film "Five Senses of Eros" (2009), before releasing his filmmaking debut, the romantic comedy "How to Use Guys with Secret Tips" (2013).
Split into simpler sentences: Lee acted as the assistant director on the South Korean omnibus film "Five Senses of Eros" (2009). In 2013, he released his filmmaking debut, the romantic comedy "How to Use Guys with Secret Tips" (2013).