CREATE TABLE table_41061 ("Date" CLOB, "Title" CLOB, "Director" CLOB, "Production Cost" CLOB, "Singapore Gross" CLOB)

When was the film directed by Pen-Ek Ratanaruang released?
SELECT "Date" FROM table_41061 WHERE "Director" = 'pen-ek ratanaruang'
SELECT "Date" FROM "table_41061" WHERE "Director" = 'pen-ek ratanaruang'