With an exotic, dark appearance and an Eastern European mystery, Elina Lowensohn, a rising actress in mostly independent films, is a performer considered to have the kind of expressive looks that would have played well in silent movies. Filmgoers will long remember her performance as a Jewish architect shot by Ralph Fiennes simply because she knows how to construct a building's foundation in Steven Spielberg's "Schindler's List" (1993). Lowensohn's own background included both concentration camp victims and survivors. Her grandparents died in the cattle cars on the way to camps, while her