How many movies have Hannu Halonen and Pentti Irjala collaborated on?

They have worked on 8 movies together! Their first movie together was Herra sotaministeri (1957) while their highest rated movie together was Mies tältä tähdeltä (1958). They have not worked together since Kaks' tavallista Lahtista (1960). They are most known for their comedy films together.