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.
The scene where they play against Death was one of the funniest scenes in any movie I've ever watched, although it was slightly ruined by the fact that they showed it in the trailers.