How many movies have Bettina Woernle and Birgit Gasser collaborated on?

They have worked on 3 movies together! Their first movie together was Dr. Sommerfeld - Alte Träume, neue Liebe (2005) while their highest rated movie together was Liebe verlernt man nicht (2009). They have not worked together since Männer lügen nicht (2010). They are most known for their drama films together.