How many movies have Jaromír Ulehla and Zdeněk Zydroň collaborated on?

They have worked on 4 movies together! Their first movie together was Jankove hračky (1984) while their highest rated movie together was Ghosts of the Dormers (1988). They have not worked together since Ghosts of the Dormers (1988). They are most known for their family films together.