I know I'm in the minority here but....Guardians of the Galaxy.
"Oh look, the opening is a bad knock off of ET. And then look, its a bad knock off Raiders of the Lost Ark! And now it's pillaging from Star Wars" YAWN.
Jokes weren't funny, literally didn't care about any of the characters, the action was just a CGI borefest. When you see 40 something year old man sitting beside you in the cinema, wearing his Marvel T-shirt and doubled over laughing at an animated racoon...it did make me feel a bit weird about GotG and it was the first time I felt uncomfortable watching a comic book movie.
That was just me though, I know a lot of people loved it.