More than 20 years after its release, Sex is zero remains one of South Korea’s boldest youth films of the early 2000s. Known for its outrageous humor, chaotic dorm room antics, and the dynamic energy of a young cast, the film has become a nostalgic touchstone for an entire generation across Asia.
However, behind the most iconic and sensual scene lies a grueling behind-the-scenes experience, in which lead actress Ha Ji Won endured intense physical and emotional strain, battling exhaustion and freezing temperatures for just a few seconds of screen time.
A busy shot behind a brief moment on screen
Although the steamy scene only lasted about 15-20 seconds of screen time, filming lasted almost half a day. At the time, Ha Ji Won was in her early twenties and had limited experience in intimate roles. Without the assistance of a modern intimacy coordinator, the 2002 production relied entirely on manual techniques: floating lighting, repeated camera angle testing, and practical effects, all requiring precision from the actors.
Every movement had to be perfectly choreographed. One breath out of place, one burst of laughter, or one wrong angle meant starting over. To maintain her fiery look on screen, Ha Ji Won overcame discomfort and fatigue, with the crew often stopping to warm her with blankets before filming under the incessant demands of filming.
The actress was reportedly shaking from the cold and tiredness during filming, as the set was not heated and her wardrobe was minimal. “The camera may have fogged up due to the heat on screen, but off screen it was a battle between the cold and my patience,” he once said.
Transforming the challenge into growth
Despite the difficulty of the scene, Ha Ji Won considers it a formative moment in her acting journey. He described the experience as “awkward, exhausting and full of pressure”, but also fundamental in teaching her how to remain composed in front of the camera and manage emotionally charged performances.
Following Sex is zeroHa Ji Won rose to fame with extraordinary roles Hwang Jini, Grassand the iconic Secret garden. Since then, her versatility and professionalism have solidified her status as one of Korea’s most respected actresses.
A star who continues to reinvent himself
Now 47, Ha Ji Won remains a powerful force in the Korean entertainment industry. Although he is less visible on television, his artistic presence is stronger than ever. In recent years she has ventured into the art world with her solo exhibitions Phenomenal Change: Examining Why I Am Me in Seoul. His recent public appearances reveal that he retains his youthful glow, toned physique and poised demeanor.
In addition to her art, Ha Ji Won runs a beauty brand, invests in real estate, and leads an independent life that many modern women admire. Silent but tenacious, she continues to captivate audiences not through controversy or spectacle, but through relentless talent, discipline and a willingness to evolve.
Behind the sensuality and humor of Sex is zeroit was Ha Ji Won’s resilience that turned a fleeting scene into a career-defining moment.
Sources: kenh14
