How many movies have Gerry McAvoy and Rod de'Ath acted in together?

They have worked on 3 movies together! Their first movie together was Rory Gallagher - WDR Studio-L Köln (1976) while their highest rated movie together was Rory Gallagher - Live at Montreux (2006). They have not worked together since Rory Gallagher - Live at Montreux (2006). They are most known for their music films together.