Frozen was a lot less like the princess movies Disney made, so most people found it refreshing, even though it wasn't the breakthrough that was Maleficent...

I don't think any such movies exist. Every movie has a significantly large hate group.

In that case how were you expecting people to say TFA since a lot of people didn't like it? Personally, in real life, I don't know any who liked it (saw it with 3 other people at the theatre).

I'm really not a fan of any of the LotR films

I remember trying to watch Frozen, and found it so boring and uninteresting.

Ant Man

American Hustle

A Bugs Life

Monsters Inc.

Not bad. Just not.... good.

Hmm lets see Memento,Donnie Darko,Inside Out to name a few and especially Princess Mononoke i think i found almost every other studio ghibli movie to be better i tried to go through it three or four times! i barely finished it and i just don't get why people love it so much.

Batman Begins.  I have never being able to understand what people like so much about it.  I guess I couldnt get pass the choreography of the action sequences.

There are others that, while I did not dislike them per se, I just cannot understand the hype surrounding them. These are:

The Force Awakens (seriously, I actually liked Revenge of the Sith more than this one).

The Dark Knight Rises

Jurassic World

Iron Man and Thor movies (all of them)

Inception

The Wolf of Wallstreet, the most uninteresting movie i saw in 2014.

I guess there are a few I could mention.

1. Chronicles of Narnia: The Lion, the Witch and the Wardrobe
The only reason this movie isn't utterly forgettable is thanks to Tilda Swinton's excellent performance as the White Witch. Nothing else about the movie stands out in any way. The second movie was much better in general, but it lacked that one great performance the first movie had, so it ended up kind being just kind of decent.

2. Titanic.
I never understood the love for this film. It's easily one of Cameron's worst films. The characters are flat and uninteresting and the whole love story just feels completely unnecessary. On the technological side the film is amazing, I won't deny that. That's just not really enough for it to be a good movie.

3. The Hunger Games
I've only seen the first movie in the series, and quite frankly, I don't really have much interest to see the rest. I probably will at some point, as I've heard they get better, but the first one didn't exactly sell me on the franchise. Jennifer Lawrence gives a good performance, but it's still just barely an OK movie. The action scenes are annoying to watch thanks to the overuse of shakycam. The themes a lot of people praised have been done multiple times before in other movies, so I didn't really see the uniqueness of the story either. It's OK, but that's about it.