How many movies have Johnny Kraaijkamp Sr. and Piet Römer acted in together?

They have worked on 2 movies together! Their first movie together was Happy Days Are Here Again (1975) while their highest rated movie together was Baantjer, de film: De Cock en de wraak zonder einde (1999). They have not worked together since Baantjer, de film: De Cock en de wraak zonder einde (1999).