BY #3 - Most of the time, Belarusfilm would produce documentaries with another studio, as you can see here. This can be spotted at the beginning and the ending of each documentary released by these companies.
There are two versions:
- one is in Belarusian language (taken from "Polissya Carols" (Полесские колядки), 1972);
- the latter one being in Russian (taken from "Motherland" (Родная земля), 1972).