What's of rating on the movie "Innocence Unprotected" by the user who created the movie list "250 Favourite Films"?
Innocence Unprotected' is movie_title; '250 Favourite Films' is list_title; rating refers to rating_score;
SELECT T1.rating_score FROM ratings AS T1 INNER JOIN movies AS T2 ON T1.movie_id = T2.movie_id INNER JOIN lists AS T3 ON T3.user_id = T1.user_id WHERE T2.movie_title = 'Innocence Unprotected' AND T3.list_title = '250 Favourite Films'