What are the titles and directors of the movies whose star is greater than the average stars of the movies directed by James Cameron?
return movies ;return #1 directed by James Cameron ;return the  stars of  #2 ;return the  average of  #3 ;return the  stars of  #1 ;return #1 where #5 is  greater than #4
['select', 'filter', 'project', 'aggregate', 'project', 'comparative']