The last time you were FOOLED into thinking a masterpiece would be a horrible movie?

[TheLaughingMann]

Props go to Penelope37 in their thread for originating the idea of the last time a horrible movie fooled you into thinking it was a masterpiece: https://forum.blu-ray.com/showthread.php?t=292286

But what of the opposite? When was the last time you were fooled into thinking something that was inexplicably brilliant or well done or great was going to be a horrible movie?

For me, it was A Knight's Tale. I thought it would have been horribly cheesy the first time that I saw it. But I got captivated from start to finish. And here we are, over a decade and a half later, and the movie has gotten BETTER (especially with the climb of some of the cast members):

When you have a movie that features Robert Baratheon, the Joker, Vision (from the Marvel Cinematic Universe), Lydia from Breaking Bad, Wash from Firefly, Marc Antony from Rome, and Obergruppenfuhrer Smith from The Man In the High Castle, with a dose of rock for the soundtrack, and the right blend of comedy, drama, and hope woven into it, it really becomes the kind of movie that people can enjoy.

So go ahead, folks. What was that rich and vibrant gem you found in the film wastes that needed a good polish (or watch) to be appreciated beyond a first glance?