[Video not available through the provided link anymore but there is a 1947 documentary film called "Nuremberg Trial" (Russian version, needs YouTube-login), that probably is the very same film.
If so, check contents at around 49m 55s.]
Another version can be seen here.
Watch "the soap made from human beings" and onwards...
"Here is human skin, dressed and tanned at the factory. From it the Germans
made gloves, ladies bags and breifcases."