Meblościanka (wall unit)?
As Alien already wrote the actor is Daniel Olbrychski. I recognised the actress, but I didn't know what her name was. However, I googled "historia meblościanki" (the history of wall unit) and this article came up:
So, the actress is Elżbieta Czyżewska and that scene is from a musical comedy "Małżeństwo z rozsądku" (Marriage of Convenience) from 1966/67 directed by Stanisław Bareja:
Nice song :) (Btw, my parents still have such "crystals" lol - they belonged to my grandparents :))