How many movies have Lubomír Kostelka and Ludmila Roubíková acted in together?

They have worked on 18 movies together! Their first movie together was Sedm koní a vavříny (1966) while their highest rated movie together was Bellinzonova pyramida (1974). They have not worked together since Není sirotek jako sirotek (1987). They are most known for their comedy films together.