How many movies have Bobby E. Lüthge and Lucie Englisch collaborated on?

They have worked on 7 movies together! Their first movie together was Ruhiges Heim mit Küchenbenutzung (1930) while their highest rated movie together was The Black Forest Girl (1950). They have not worked together since Mikosch rückt ein (1952). They are most known for their comedy films together.