Good old Netflix keeps throwing up movie suggestions " You ought to rent this one" to me. And Netflix does pretty well, most of the suggestion are things I like. Netflix claims to select each movie suggestion "because you liked Such and Such".
This means that Netflix has a way of classifying movies, so that given one movie the customer likes, the computer finds movies of a simular classification system.
I'd love to know just how that classification system works. How much weight is given to who stars in the movie vs subject matter, vs era, vs who knows what? Surely a classification system that matches my personal likes and dislikes so closely could tell us something about what makes a good movie and what makes a crummy one.
Hollywood could use the help. They have been making more crummy movies than good movies lately.