When did user 39115684 rate the movie "A Way of Life"?
A Way of Life' refers to movie_title; user 39115684 refers to userid = 39115684;  when the user rate refers to rating_timestamp_utc;
SELECT T1.rating_score FROM ratings AS T1 INNER JOIN movies AS T2 ON T1.movie_id = T2.movie_id WHERE T2.movie_title = 'A Way of Life' AND T1.user_id = 39115684