A South Korean activist has launched balloons carrying thousands of DVDs of a movie depicting a plot to assassinate North Korean leader Kim Jong Un across the border into North Korea.

Lee Min-bok said Wednesday that he has launched balloons carrying "The Interview" four times from South Korean border towns, most recently on Saturday. Lee says his balloons also contained political leaflets criticizing Kim's government and highlighting South Korea's economic prosperity in hopes of inspiring North Korean people to resist the leadership in Pyongyang.

North Korea considers leaflets an attack on its government and has long demanded that South Korea ban activists from sending them. The North last year opened fire after activists launched balloons toward the North. Seoul says the activists are exercising free speech.