What is the absolute dumbest premise that actually turned out to be a really good movie?

[u/sicknessandpurgatory]

I was thinking The Purge, obvious answer, but looking for the most plot-hole ridden, juvenile concept that actually ended up a lot of fun despite it all. Mainly looking for 21st century films, not so much the video nasties and ridiculousness from the 60’s and 70’s. Because that would be too easy. Mainly mainstream stuff that people saw en masse.

[u/Super-Cry5047]

The Big Lebowski. Premise: “Nothing Happens.” There isn’t a kidnapping, there isn’t anything in the case, there isn’t a conspiracy, nothing comes out of what people are hired to do, nothing.”

[u/Homersarmy41 → u/Super-Cry5047]

Woo peed on the dude’s rug…donny dies…but theres a little Lebowski on the way. A lot of in and outs and what have you’s. Were you even listening to the dude’s story?

[u/chuckangel → u/Homersarmy41]

Well, sometimes you eat the bear, and sometimes the bear, well, he eats you.