1. This was aired on the Festival as "Black Mountain".
This was a joint production by the Soviet Union and India; in the Russian version, Russian is spoken over the Indian dialog.
There are DVDs available in Russian/Indian and German. These are the full 90 minute versions, but, of course, there is no English. Embassy released a 30 minute English version on VHS and titled it "A Boy and His Elephant". It is out of print, but you can still get used copies on Ebay and elsewhere. It may even be at your public library.
You can see a clip here:
2. This one I can't figure out. Can you provide any more details?