What is the average score for the movie Versailles Rive-Gauche?
Versailles Rive-Gauche' is movie_title; average score refers to Avg(rating_score);
SELECT AVG(T1.rating_score) FROM ratings AS T1 INNER JOIN movies AS T2 ON T1.movie_id = T2.movie_id WHERE T2.movie_title LIKE 'Versailles Rive-Gauche'