How much did Universal Studio's film Xanadu gross?
CREATE TABLE "top_grossing_films_u_s" (
  "rank" real,
  "title" text,
  "studio" text,
  "director_s" text,
  "gross" text
);
SELECT "gross" FROM "top_grossing_films_u_s" WHERE "studio"='universal' AND "title"='xanadu';