(I suppose that the word Ketten is linked to "catenary "etc .... )
But .... next to it in the list thingy down the side, there was a German comedy film. And here it is... mind you, it's long .... sehr sehr s e h r s e h r .
I recommend watching it in dinky chunks ..... I've watched the first three 5-minute chunks so far ... I've no idea what happens after that !