How many movies have Cheon Eun-gyeong and Kang Ri-na acted in together?

They have worked on 2 movies together! Their first movie together was Thunderhawk 3 - Thunderhawk From Outer Space Blitzkrieg (1987) and was their highest rated movie together. They have not worked together since Thunderhawk 8 - Esperman And The Thunderhawk (1993).