How many movies have Miroslav Hájek and Zdeněk Podhůrský collaborated on?

They have worked on 4 movies together! Their first movie together was Matěji, proč tě holky nechtějí? (1981) while their highest rated movie together was Zelená vlna (1982). They have not worked together since Shades of Fern (1986). They are most known for their comedy films together.