Below is an context that describes a sql query, paired with an question that provides further information. Write an answer that appropriately completes the request.  # noqa: E501
### Context:
CREATE TABLE table_name_21 (year INTEGER, title VARCHAR, category VARCHAR)
### Question:
What is the earliest year in which Requiem for a Dream was in the running for Best Director?
### Answer:
SELECT MIN(year) FROM table_name_21 WHERE title = "requiem for a dream" AND category = "best director"