How many movies have Natalia Marchenkova and Volodymyr Vrublevskyi collaborated on?

They have worked on 4 movies together! Their first movie together was Миколино богатство (1983) while their highest rated movie together was Treasure Island: Part I – Captain Flint's Map (1988). They have not worked together since Treasure Island (1989). They are most known for their animation films together.