How many movies have Marcello Marziali and Paolo Landolfi collaborated on?

They have worked on 6 movies together! Their first movie together was I delitti del BarLume - Il telefono senza fili (2016) while their highest rated movie together was I delitti del BarLume - Aria di mare (2017). They have not worked together since I delitti del BarLume - La battaglia navale (2018). They are most known for their crime films together.