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.
That one probably got a rotten rating solely on the fact that everyone feels that anything other than a cheese ball, "man in a rubber suit" rendition of Godzilla is being unfaithful to the franchise.