This movie is going to seriously screw with X-Men history timelines (of course, the other movies have kinda done the same thing), but I'm getting excited to see it this weekend. When I first heard about it, I wasn't excited at all.
I like that it's set during the Cuban Missile Crisis, which is about the time the first X-Men comics came out (September 1963) and deals with some of the same themes.
Supposedly, this is the first movie of a planned trilogy featuring a young Professor X. From what I've seen of the trailers, they've really gone all out to make sure this is a successful film.