How many movies have Ruth Stephan and Udo Jürgens acted in together?

They have worked on 4 movies together! Their first movie together was Unsere tollen Nichten (1963) while their highest rated movie together was Das Spukschloß im Salzkammergut (1966). They have not worked together since Das Spukschloß im Salzkammergut (1966). They are most known for their comedy films together.