How many movies have Lubomír Kostelka and Pavel Kopta collaborated on?

They have worked on 11 movies together! Their first movie together was Where an Alibi Is Not Everything (1961) while their highest rated movie together was You Are a Widow, Sir (1971). They have not worked together since O brokátové růži a slavíku z perleti (1983). They are most known for their comedy films together.