I find this older short film from the '70s is really intriguing. I thought some of you here might find it interesting, as well. Make sure to turn on the English subtitles (click YouTube-button to open the video in a larger player, then click "CC" button ).
https://www.youtube.com/watch?v=_3J5wkJFJzE
https://www.youtube.com/watch?v=_3J5wkJFJzE