How many movies have Joseph LoDuca and Marco Schnabel collaborated on?

They have worked on 2 movies together! Their first movie together was The Librarian: Return to King Solomon's Mines (2006) while their highest rated movie together was The Librarian: The Curse of the Judas Chalice (2008). They have not worked together since The Librarian: The Curse of the Judas Chalice (2008).