1989

Uzbudljiva ljubavna prica (Exciting love story in English) is an award-winning 6-minute animated short made in 1989 by Borivoj Dovnikovic Bordo from Yugoslavia.
Miki and Gloria glimpse each other through eight delineated worlds and eventually manage to eliminate the demarcations between the worlds.
It’s astounding, if bitter, that this short would come to be in Yugoslavia at a time when the destruction of its worlds rather than of its demarcations was about to begin.