Back to You Once More(1991)

Original title: 너에게로 또다시

Yeong-hun gave up medical school to follow his dream of becoming a movie director but he finds himself as a lowly assistant director with no real responsibilites. He meets student Seong-hie and falls in love, but he lies to her, saying that he is the film's director, hoping that she will be impressed and return his feelings of love.