A compliment to the ongoing thread with the opposite premise.
A few movies that come to mind that I didn't like that were popular or critical hits.
Top Gun, I kept saying WTF? the story didn't make sense. (yeah, the flying scenes were cool.)
Scarface, The Hip-Hop crowd loves this movie, I thought it was over the top nonsense with scenery chewing performance from Pacino.
The English Patient, I did not care about the lead characters, thought they were selfish assholes. So why would I care what happens to them. The nurse and the Indian guy were more interesting.
On rule for this thread, No Avatar. I get it, you hated it, you thought it was a lousy, stupid movie.