On Sept. 18 , lovers of classic plays and aficionados of transitional neighborhoods can meet in Ditmas Park , a Victorian section of Flatbush in Brooklyn , where the Brave New World Repertory Theater will perform '' To Kill a Mockingbird '' using the street , the sidewalk and the porches of six turn-of-the-century -LRB- the 20th , that is -RRB- homes on either side of Westminster Road as setting and stage . ''