How many movies have Martijn Spierenburg and Robert Westerholt acted in together?

They have worked on 5 movies together! Their first movie together was Within Temptation: Mother Earth Tour (2003) while their highest rated movie together was Within Temptation: Let Us Burn Elements & Hydra Live in Concert (2014). They have not worked together since Within Temptation - Hellfest 2023 (2023). They are most known for their music films together.