Inspired by the linked XKCD. Using 60% instead of 50% because that’s an easy filter to apply on rottentomatoes.
I’ll go first: I think “Sherlock Holmes: A game of Shadows” was awesome, from the plot to the characters ,and especially how they used screen-play to highlight how Sherlocks head works in these absurd ways.
You can look for specific reviewers who tend to like the same kinds of movies as you, then see what they think. Or, look at the reviews instead of the score. I tend to look at an average review, a positive review and a negative review, to see if I care about any of the bad parts they bring up.