* If tomatometer & audience score are within 5% of each other, you can trust the ratings to give you a decent indiciation of movie quality.
* If tomatometer is more than 15%+ higher than audience score, it means it's an artsy fartsy movie that critics like and movies don't.
* If audience score is 15%+ higher than tomatometer, it's a fun movie even if it's not oscar worthy. (https://www.rottentomatoes.com/m/old_school is a perfect example)
The TV show "King the Land" is a Korean drama that aired on cable in Korea this summer and was released at the same time on Netflix worldwide. It was very popular in Korea [1] and many Asian countries. But if you look at IMDB [2] it has a 4.2 rating, with 116 thousand votes of 1/10. Similar Korean shows typically have ratings in the 7-9 range. The reason for the low rating is a controversy over a minor character in the show. I don't know how this mass voting was organized, but it seems to have worked in affecting the IMDB score (and similarly on RT).