For what motion picture did Samuel L. Jackson win the best supporting actor award before 1997?
CREATE TABLE "men" (
  "year" real,
  "actor" text,
  "award" text,
  "motion_picture" text,
  "result" text
);
SELECT "motion_picture" FROM "men" WHERE "award"='best supporting actor' AND "actor"='samuel l. jackson' AND "year"<1997;