What are the titles and directors of all movies that have a rating higher than the average James Cameron film rating?
SELECT T2.title ,  T2.director FROM Rating AS T1 JOIN Movie AS T2 ON T1.mID  =  T2.mID WHERE T1.stars  >  (SELECT avg(T1.stars) FROM Rating AS T1 JOIN Movie AS T2 ON T1.mID  =  T2.mID WHERE T2.director  =  "James Cameron")
Ortalama James Cameron film derecelendirmesinden daha yüksek bir dereceye sahip tüm filmlerin başlıkları ve yönetmenleri nelerdir?