Codename Cougar (1987)

Synopsis
In this crime/political thriller, on a routine flight in September from Taipei, Taiwan to Seoul, Korea, a wealthy businessman's private airplane is hijacked by some crackpots claiming to be the Taiwan Revolutionary Army Front, and is forced to land on mainland China. Chinese authorities are at a loss to deal with the situation, as the businessman is important to China's future development and they can't just storm the plane. In addition, he is an important figure in Taiwan, a country that Beijing refuses to acknowledge exists. Despite that, the two governments decide to cooperate very discreetly to deal with the situation, and the tension on the hot, hot runway is hardly greater inside the plane than it is among the authorities. ~ Clarke Fountain, All Movie Guide