I've been using the website Movie Lens for over a decade and it works kind of like this, except you're not comparing to critics, it's just other users' average score
>>mitchd+(OP)
Yeah, I mean, its a pretty basic application of the general recommender-system concept, there's probably lots of places where there is an approximation of it for movies.
>>mitchd+(OP)
Criticker (https://www.criticker.com/) works like this too and gives really good recommendations but even keeping track of all the movies you've watched and rating them is more work than most people want to do.