How many movies have Libuše Pražáková and Václav Fiala collaborated on?

They have worked on 4 movies together! Their first movie together was Paní Piperová zasahuje (2000) while their highest rated movie together was Elixír a Halíbela (2001). They have not worked together since Slečna Guru (2006). They are most known for their comedy films together.