What are the movie titles with the highest average rating and what are those ratings?
SELECT T2.title ,  avg(T1.stars) FROM Rating AS T1 JOIN Movie AS T2 ON T1.mID  =  T2.mID GROUP BY T1.mID ORDER BY avg(T1.stars) DESC LIMIT 1
SELECT T2.title ,  avg(T1.stars) FROM Rating AS T1 JOIN Movie AS T2 ON T1.mID  =  T2.mID GROUP BY T1.mID ORDER BY avg(T1.stars) DESC LIMIT 1
[{'title': 'Snow White', 'avg(T1.stars)': 4.5}]