How many movies have Martijn Westerholt and Robert Westerholt acted in together?
They have worked on 2 movies together! Their first movie together was Within Temptation - Mother Earth (2002) 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: Let Us Burn Elements & Hydra Live in Concert (2014).
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Guest: keyboards
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Guest: guitars
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Himself
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Himself