The Secret Mission

Malmoi is a movie starring Hae-Jin Yoo, Yoon Kyung-ho, and Hong-pa Kim. During the Japanese occupation, two men travel across the country compiling the first Korean language dictionary.
During the Japanese occupation of Korea, the Japanese Empire seeks to eradicate the Korean language and identity. In retaliation, a small group of Korean patriots try to protect their language by compiling the first Korean language dictionary.