How many movies have An Il-ryeok and Im Kwon-taek collaborated on?

They have worked on 5 movies together! Their first movie together was A Precious Sword, A Knife of Thunder (1969) and was their highest rated movie together. They have not worked together since Japanese Invasion in the Year of Imjin and Gye Wol-hyang (1977). They are most known for their action films together.