How many movies have Calum Waddell and Naomi Holwill collaborated on?

They have worked on 5 movies together! Their first movie together was From Romero to Rome: The Rise and Fall of the Italian Zombie Movie (2012) while their highest rated movie together was 42nd Street Memories: The Rise and Fall of America's Most Notorious Street (2015). They have not worked together since Category III: The Untold Story of Hong Kong Exploitation Cinema (2018).