20th Century Girl (Korean: 20세기 소녀; RR: 20segi Sonyeo) is a South Korean romance drama film written and directed by Bang Woo-ri in her feature film debut, starring Kim Yoo-jung, Byeon Woo-seok, Park Jung-woo, and Roh Yoon-seo. The film depicts the friendship and freshness of first love against the backdrop of 1999. It was released on October 21, 2022, on Netflix. Director Bang Woo-ri wrote the script based on her personal experience of exchanging diaries with her friend. The film is set in Cheongju, the director's hometown.br br br Kim Yoo-jung as Na Bo-rabr Han Hyo-joo as adult Na Bo-rabr Seventeen-year-old high school student, a Taekwondo practitioner, and a member of the broadcasting club at her school.br br Byeon Woo-seok as Poong Woon-hobr Bo-ra’s classmate and a member of the broadcasting club.br br Park Jung-woo as Baek Hyun-jinbr Woon-ho’s best friend, a popular man who is liked by his classmates.