According to Korean media, producer Guitar Man held a press screening on the morning of May 21, at Lotte Cinema World Tower in Songpa-gu, Seoul.
Although Kim Sae Ron's family was invited to the event, her mother could not attend due to health problems.
Some people speculate that recent attention on the seemingly underage relationship between Kim Sae Ron and actor Kim Soo Hyun may have contributed to psychological stress on her family members.
" Guitar Man" is a musical film about a generation guitar artist who overcomes loss and love while seeking hope through music despite harsh reality.
The film was planned, directed, produced and headlined by singer-songwriter Lee Sun Jung.
In the film, Lee plays Ki Chul, a talented guitarist who is living a life of flourishing due to financial difficulties.
He joined a live club band called Volcano as their guitarist through a friend's introduction and met keyboardist Yoo Jin, fronted by Kim Sae Ron.
Together with the band, they began a journey to seek light and hope in the world.
After a press screening and a special Q&A with the audience on May 21, " Guitar Man" is scheduled to premiere on May 30.