Plot-I have no doubt that there are people that exist that would love to see the world burn. I don't doubt this. But to have Sabastian Shaw, a very wealthy womanizer, be the person that wants to see the world burn doesn't make sense. For whatever reason, he thinks all mutants will survive nuclear annihilation and start a new world. Even if they were able to survive the nuclear blasts and fallout, they would inherit a dead world. They also has a character named Darwin that has the ability to adapt to conditions around him to survive. In order to establish Shaw's power we get to see how Darwin can't adapt to everything regardless of the fact that it was established that he could. He was also the one black guy in the movie. Yes, the black man dies.
Acting- I can't fault the movie here. The acting was pretty good. Well, I didn't care for the constipated Professor X, but everyone else was pretty good and I would like to see them in a real X-Men movie.
Some people will say that the first X-Men movie did the same. To a degree, it did. But that was a different time and I think folks were just excited to see the X-Men on the big screen.
Overall, it was an okay movie if you separate it from comics. As a comics fan, I just felt cheated. I wanted to take a shower after watching the movie.