How many movies have Shin Yeong-cheol and Song Joong-ki acted in together?

They have worked on 1 movie together! Their first movie together was A Werewolf Boy (2012) and was their highest rated movie together. They have not worked together since A Werewolf Boy (2012).

Role
Eun-ju's Boyfriend (uncredited)
Role
Wolf-Boy / Chul-soo