From all the movies that got more than 13000 popularity number, which one had the least ratings.
more than 13000 popularity number refers to movie_popularity > 13000; least ratings refers to MIN(rating_score)
SELECT T2.movie_title FROM ratings AS T1 INNER JOIN movies AS T2 ON T1.movie_id = T2.movie_id WHERE T2.movie_popularity > 13000 ORDER BY T1.rating_score LIMIT 1