How many movies have Bela Lugosi and Gustav Birkholz acted in together?

They have worked on 3 movies together! Their first movie together was Sklaven fremden Willens (1920) while their highest rated movie together was Daughter of the Night (1920). They have not worked together since Daughter of the Night 2 (1920).

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Andrew Fleurot
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Großfürstin Frederich Dedorovitch
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Andrew Fleurot
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Großfürstin Frederich Fedorovitch