Ditto (2000 South Korean Film)
Ditto (Korean: 동감; RR: Donggam) is a 2000 South Korean romantic fantasy film directed by Kim Jeong-Kwon. The film explores themes of connection and time, centered on two college students living in different decades who communicate through a ham radio.

Plot
The narrative follows two students, Yoon So-Eun (Kim Ha-Neul), living in 1979, and Ji-In (Yoo Ji-Tae), living in 2000. Both characters independently begin using a ham radio to communicate with others. Through these radio transmissions, they establish a connection, only to discover through a series of misunderstandings that they are separated by over two decades of time.
Cast
The film features an ensemble cast portraying characters across different timelines:





- Yoo Ji-Tae as Ji-In
- Kim Ha-Neul as Yoon So-Eun
- Park Yong-Woo as Ji Dong-Hee
- Ha Ji-Won as Seo Hyun-Ji
- Kim Min-Joo as Heo Seon-Mi
Additional cast members include Shin Cheol-Jin (guard), Maeng Bong-Hak (doctor), Kim Sang-Won (Ji In's friend 1), Kong Yoo-Seok (Ji In's friend 2), and Kim Bang-Sun (librarian).

Production
Ditto was directed by Kim Jeong-Kwon, with a screenplay written by Jang Jin and Shin Jae-Ho. The film was produced by Kam Sam-Jin, Lim Dong-Moon, and Seo Il-Sik. Cinematography was handled by Yoon Young-Moon and Jung Kwang-Suk. The film was released in South Korea on May 27, 2000, with a total runtime of 110 minutes.