Question: Which regions of the Soviet Union have an old tradition that is portrayed in the 1967 comedy film that made Natalya Varley famous?
Sentence (from "Kidnapping, Caucasian Style"): Kidnapping, Caucasian Style (Russian: Кавказская пленница ) is a 1967 Soviet comedy film dealing with a humorous plot revolving around bride kidnapping, an old tradition that used to exist in certain regions of the Northern Caucasus.
Relevant evidence: Yes