Old Partner (Korean: 워낭 소리; RR: Wonang Sori; lit.

Cowbell Sound[1]) is a 2008 South Korean documentary film directed by Lee Chung-ryoul.

Set in the small rural town of Hanul-ri in Sangun-myeon, Bonghwa County, North Gyeongsang Province, the film focuses on the relationship between a 40-year-old cow and an old farmer in his 80s.

It attracted over 2.93 million viewers, setting the record for the highest grossing independent film in Korean film history.

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