I watched it as a child so i only remember two scenes, so in one scene i remember, there are women, they are picking pearls from a bag, they cannot see which pearl they are picking - there is only one black pearl and the other pearls are white, the woman who chooses the black pearl her son is taken away from her, also it’s like there are other creatures. And i remember the last scene where the woman is walking in the street and sees a face and recognizes its her son - who is taken away from her - but she recognizes him even though he is grown now, and that’s all i remember
I watched this maybe 6 months ago and it is definitely it.