premise: Svetlana Aleksandrovna Metkina (Russian: Светлана Александровна Меткина ; born 7 January 1974) is a Russian actress from Moscow. She is known outside Russia for playing the Czechoslovak reporter Lenka Janáček in the 2006 film "Bobby". known in Hollywood under the name Lana Litvak husband Michel Litvak.
hypothesis: Svetlana Metkina is known by her Stage name in Russia 
reason: We don’t know how Russian fans know Svetlana Metkina, by her real name or her acting name ... we only know how Hollywood fans know her 