What is the average score of the movie "The Fall of Berlin" in 2019?
The Fall of Berlin' is movie_title; in 2019 refers to rating_timestamp_utc = 2019; Average score refers to Avg(rating_score);
SELECT SUM(T1.rating_score) / COUNT(T1.rating_id) FROM ratings AS T1 INNER JOIN movies AS T2 ON T1.movie_id = T2.movie_id WHERE T1.rating_timestamp_utc LIKE '2019%' AND T2.movie_title LIKE 'The Fall of Berlin'