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_11820086_1 (directed_by VARCHAR, us_viewers__millions_ VARCHAR)
### Question:
Who directed the episode that was viewed by 2.57 million people in the U.S.?
### Answer:
SELECT directed_by FROM table_11820086_1 WHERE us_viewers__millions_ = "2.57"