There must be platforms that try to do 'graph-matching' i.e. ask a new user to rate 25-30 popular movies. Compare against scores of other users who have rated the same movies. Identify a cluster of users who rate similarly; our new user is matched with this group. So, for other movies, the user can check the mean/modal score by members in this cluster. Sound familiar?
Thanks for the tip. Is there any media recommendation engine that implements it?
Note though that I'm not talking about the engine itself recommending movies. It places you within a group and shows you the scoring data of like-minded reviewers.