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From The Lost Media Wiki
So in https://www.youtube.com/watch?v=DsjH8N6BlQ4 there are credits at the end, but they are kinda unreadable. There was only one I could make out and this lead me to this website https://www.menadocs.com/members-world-wide/thomas-allercrantz It shows some contact info of an Swedish film produser and if you look at the credits there he is.