user: Question: For what motion picture did Samuel L. Jackson win the Best Supporting Actor award before 1997?
Columns: ['Year', 'Actor', 'Award', 'Motion Picture', 'Result']
Types: ['real', 'text', 'text', 'text', 'text']
Sample row: [1959.0, 'Sidney Poitier', 'Best Actor – Drama', 'The Defiant Ones', 'Nominated']
SQL:

assistant: SELECT "Motion Picture" FROM "Table" WHERE "Award" = 'Best Supporting Actor' AND "Actor" = 'Samuel L. Jackson' AND "Year" < 1997.0;