What is the Motion Picture Association of America rating for the movie featuring a villain named Turbo?
The Motion Picture Association of America rating refers to MPAA_rating; villian = 'Turbo';
SELECT T1.MPAA_rating FROM movies_total_gross AS T1 INNER JOIN characters AS T2 ON T2.movie_title = T1.movie_title WHERE T2.villian = 'Turbo'