Commercial success and quality (&quot;good movie&quot;) are obviously very different things. Critics care about the latter. Quality is hard to quantify, but that&#x27;s no excuse to take such a poor proxy as sales. If you want to test whether Rotten Tomato scores are meaningful, I say you&#x27;d have to test whether they are meaningful to a particular individual with particular tastes; i.e., test the correlation of someone&#x27;s judgments against a critic&#x27;s.