The Claus Family (2020) on Netflix

Plot summary

Suzanne moves from the Netherlands to Belgium with her children, Jules and Noor, after finding work in a biscuit factory, and while she works, her father-in-law Noël looks after the children. Jules wants nothing to do with Christmas since his father died the year before, and he spends his time in his grandfather's toy shop. There he comes across a snow globe with the power to carry him anywhere in the world, and he learns that Noël is the real Santa Claus, kept going by elves in a secret workshop. Noël's health is failing and he can no longer manage the Christmas deliveries on his own, so the task falls to Jules, who is not eager to help.