One of the best and most mature Marvel movies to date.
The first half of this movie is a huge delight and a huge thrill. Hugh Jackman and Patrick Stewart are so entertaining to watch as characters they've known for 17 years. They've taken their characters a step further here in a script that allows them to explore themselves emotionally more than ever before. This movie is strictly part-drama. Yes, that's right. Finally, a Marvel superhero movie you can confidently stamp the drama genre tag on.
The effects, stunts and gore are really quite shocking. You can really feel the weight of each character's immense power, and more importantly, the struggles that come along with them. This further fleshes out each character.
The movie starts to lose the enjoyability of its ensemble halfway through, and what happens after is what you might expect from a typical X-Men film. Action, sci-fi and more action/sci-fi. The villains are as interesting as they can be I suppose. They lack much development but are there to fuel the real story. Anyway, I can't say much else without spoiling the plot. I'll just say that I wish the movie would have taken a different direction.