This is the thread similar to the one I wanted to make

There are oh so many of these. Just gonna put in a few that are widely regarded as incredible movies that I didn't find that way at all.
Lost in Translation - I remember watching it on TV and it was utterly boring, so much so that I didn't even care to finish it, which I always do, even if it's a pain to sit trough. Few years later after constantly hearing about this movie as some sort of masterpiece all over internet, I decided to watch it again. Consensus? Same. Incredibly dull. I can't even put my finger on exactly what was so bad or anything, it's just every little thing in the movie screamed "boring!!!" to me.
The Dark Knight - I feel this one was ruined by my first viewing in movie theatre, in the sense that I didn't remember a damn thing about the movie I just watched. Afterwards I've seen it plenty of times on TV and on computer, but apart from the Joker, I was disinterested in pretty much everything it had to show. I did like Batman Begins way more (maybe because I'm a sucker for origin stories), but The Dark Knight Rises was just stupid.
Goodfellas and Scarface - these are different in the sense that I had no problem watching them from start to finish because of how well these movies were made, especially Goodfellas. However, as is the pattern with mafia movies, I just can't find one single character that I like. At the very best they're really annoying, and usually I just hate them. So these are one-time movies for me: I like them enough while I watch them, but they don't hold any long-term value for me because I can't force myself to like ANY characters in the movie.
Gran Torino - really disliked this one. Eastwood does have some badass scenes as always, but overall it's just a cheap Million Dollar Baby rip-off.