I liked the opening of the film. The film started to go a little hawire when they first introduced the President.
The flashback scene with Xavier and Mags, was very reminicent of the first two films. The flashback scene with Angel was both disturbing, and saddening, and was very reflective of the first two films.
When they got to the scene with the President, the movie felt totally akward. Why didn't they get the same guy from x2 to be President? First off that guy actually appeared Presidential on screen. Second of all, it would have been logical for him to appoint a mutant to his cabinet, given the closing scene in the Whitehouse in X2.