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.
Envy (2004) starting Jack Black and Ben Stiller. I recently rewatched this as it had been 10+ years since I last saw it. I was pretty surprised to see how poorly rated it was. Supposedly Jack and Ben even apologized for it. I don't know, I still think it's funny.