Hubner, I've just looked that one up and will definitely try to find it. I'm reminded of a period when it seemed every other film on BBC was an Eastern European noir or arty cartoon - and none the worse for that.
The one I'm going to suggest here is not exactly forgotten or obscure but I only saw it a couple of weeks ago, thanks to a version my neighbour had from a charity shop. It's an Italian film, which won awards, called Cinema Paradiso. Do you know it? It stars Philippe Noiret as a projectionist who befriends a boy (a terrific performance from the child-actor) who goes on to be a successful director. It's a great story but most of all just beautiful to look at.
If you don't like it, I have others..... !