How many movies have Petter Bäckström and Valentin Vaala collaborated on?

They have worked on 1 movie together! Their first movie together was Mustat silmät (1929) and was their highest rated movie together. They have not worked together since Mustat silmät (1929).

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"B" Camera Operator
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Ra-Dorek
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Director
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Writer
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Editor
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Production Design
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Costume Design
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Makeup Artist