Though if you dislike the usual superhero movie, you're liable to actually like this movie, it throws away 99.9% of the superhero tropes. It's about how things would go if actual people decided to become superheros and what would happen to then and the world they live in as a result of it.
Plus, if you like movies as art, it's beautifully done, and unlike so many movies today, it's actually scored well. I was about 2 minutes into this movie, which I had gone into sure I was going to hate, when I realized, no, no, this is fabulously well done.
And yes, I was sure I would hate this movie. I had avoided watching it for almost 3 years after it's release. I only watched it to see if one of the actors could act. (Having watched another movie which had convinced me to HATE this actor.)
Now it's one of the 4 movies I've ever bought in my life.