How many movies have Hans Löhmer and Hans Ohrtmann collaborated on?

They have worked on 3 movies together! Their first movie together was Tausend Melodien (1956) while their highest rated movie together was Der Fremdenführer von Lissabon (1956). They have not worked together since Unter Palmen am blauen Meer (1957). They are most known for their music films together.