How many movies have Rikiya Iwaki and Shinji Takada acted in together?

They have worked on 4 movies together! Their first movie together was Man with the Funky Hat (1961) while their highest rated movie together was Man with a Funky Hat: The 20,000,000 Yen Arm (1961). They have not worked together since 次郎長社長と石松社員 威風堂々 (1962).