Why does Alan Cunningham have to play Nightcrawer? Don't get me wrong, Nightcrawler is my favorite X men ever, and I'd really hate it if he doesn't show. But personally, I didn't like Cunningham's portrayal of Nightcrawler, he made him seem a depressing character instead of the fun, witty Nightcrawler in the comics.
@MuyJingo: Have you the Thor movie? (if you haven't, then I highly suggest it.) I think what it says in the movie is that Thor and all the other Asgardians were aliens from another dimension or something like that.