Pulgasari 불가사리 (1985)

Without doubt, North Korea's most famous film. This also has an interesting history in that it was directed by a South Korean, Shin Sang-Ok, who had been kidnapped in 1978 by North Korean intelligence on the orders of Kim Jong-Il son of the then-ruling Kim Il-Sung.

http://en.wikipedia.org/wiki/Pulgasari

http://www.imdb.com/title/tt0089851/