How many movies have Ignát Herrmann and Václav Pštros collaborated on?

They have worked on 3 movies together! Their first movie together was Otec Kondelík a ženich Vejvara I. (1926) and was their highest rated movie together. They have not worked together since Tchán Kondelík a zeť Vejvara (1929). They are most known for their comedy films together.