How many movies have An Il-ryeok and Lee Hae-yoon collaborated on?

They have worked on 3 movies together! Their first movie together was The Two Revengeful Hunchbacks (1971) 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.