I can't think of one like the OP states, but I have an opposite. When I finally got round to watching 'The Princess Bride'*, (after having seen parts of it here and there) I couldn't take it. After a few scenes I fast forwarded through the whole thing. (that way at least I could see what everybody was talking about.)
*so many people I like said they liked it. Ok, I'll give it a shot.
I actually didn't like it the first few times I saw it, either. (Family loved it, and kept watching it over and over, and finally it grew on me.) I think it goes down better after reading the book, and in some ways I wish the script had stuck closer to the book version of events.
I'm no stranger to liking films others hate and hating films others love. Seems many people consider the 1980's film
Dreamscapes a bad film, but I thought it was fun, and they did a great job capturing the surreality of dreams; that snake beast in its multiple incarnations was nightmare fodder, though the FX don't age well. As a kid I had a soft spot for the Cyndi Lauper/Jeff Goldblum movie
Vibes, about the psychics seeking the lost city in the jungle - just plain silly, but with a good heart. And I admit to chuckling at the clunker
The Three Amigos.