CREATE TABLE table_71312 ("Country" CLOB, "Film title used in nomination" CLOB, "Language" CLOB, "Original title" CLOB, "Director" CLOB)

What language is the film La Diagonale du Fou in?
SELECT "Language" FROM table_71312 WHERE "Original title" = 'la diagonale du fou'
SELECT "Language" FROM "table_71312" WHERE "Original title" = 'la diagonale du fou'