How many movies have Ariane Zeller and Ruth-Maria Kubitschek collaborated on?

They have worked on 4 movies together! Their first movie together was Die Liebe hat das letzte Wort (2004) and was their highest rated movie together. They have not worked together since Drei teuflisch starke Frauen - Die Zerreißprobe (2007). They are most known for their comedy films together.