KOREA-NORTH
North Korean leader Kim Jong Un gives field guidance to the remodelling site of the May Day Stadium in this undated photo released by North Korea's Korean Central News Agency (KCNA) in Pyongyang June 20, 2014 REUTERS/KCNA

North Korea has threatened the U.S. of a "merciless response" if the latter pushes through with the release of James Franco and Seth Rogen's comedy, "The Interview," in October this year.

The Interview's plot follows two journalists taking orders from the CIA to assassinate Kim Jong-un. The film makes fun of the North Korean leader as it plays around legends that "he can speak to dolphins" and that "he never has to urinate or defecate."

A spokesman for North Korea's Foreign Ministry said the film constitutes "an act of war" and a "wanton act of terror."

"The act of making and screening such a movie that portrays an attack on our top leadership ... is a most wanton act of terror and act of war, and is absolutely intolerable," the ministry said in a statement published by the Korean Central News Agency (KCNA).

Kim Myong-chol, executive director of The Centre for North Korea-U.S. Peace and an unofficial spokesman for North Korea, tagged the upcoming movie as a showcase of desperation in the U.S. government.

"There is a special irony in this storyline as it shows the desperation of the US government and American society. A film about the assassination of a foreign leader mirrors what the US has done in Afghanistan, Iraq, Syria and Ukraine. And let us not forget who killed [President John F.] Kennedy - Americans. In fact, President [Barack] Obama should be careful in case the US military wants to kill him as well," Myong-chol told The Telegraph.

Australian Foreign Affairs Minister Julie Bishop is also under the threat of North Korea following her statement saying the North Korean leader "can hardly claim legitimacy as a leader."

Bishop, apparently, hurt the dignity of the nation's supreme leader and her behavior was a mere slandering.

Her etiquette as Australia's international representative was also condemned through her statement.

"Great irony is that although she is the foreign minister of a country, she unhesitatingly let loose a spate of reckless remarks slandering the other country and interfering in its internal affairs, not properly understanding even the elementary principle of the UN Charter and the essence of the regional peace and security," the statement read.