When was the film directed by Pen-Ek Ratanaruang released?
CREATE TABLE table_name_13 (date VARCHAR, director VARCHAR)
SELECT date FROM table_name_13 WHERE director = "pen-ek ratanaruang"
### Context: CREATE TABLE table_name_13 (date VARCHAR, director VARCHAR) ### Question: When was the film directed by Pen-Ek Ratanaruang released? ### Answer: SELECT date FROM table_name_13 WHERE director = "pen-ek ratanaruang"