How much higher is the average rating score of the movie "Innocence Unprotected" than the movie "When Will I Be Loved"?
Innocence Unprotected' and 'When Will I Be Loved' are movie_title; Average rating score = Divide(Sum(rating_score), Count(rating_id));
SELECT SUM(CASE WHEN T2.movie_title = 'Innocence Unprotected' THEN T1.rating_score ELSE 0 END) / SUM(CASE WHEN T2.movie_title = 'Innocence Unprotected' THEN 1 ELSE 0 END) - SUM(CASE WHEN T2.movie_title = 'When Will I Be Loved' THEN T1.rating_score ELSE 0 END) / SUM(CASE WHEN T2.movie_title = 'When Will I Be Loved' THEN 1 ELSE 0 END) FROM ratings AS T1 INNER JOIN movies AS T2 ON T1.movie_id = T2.movie_id