Sorry to bump this. I was reading up on some things at a movie mistakes and trivia site, and there was one or two things listed that might be interesting to you folks:
-The X-Men graphic novel, "God Loves, Man Kills" (some of the plot for the movie X2) the mutant hating senators name is William Stryker, the same name as the militant mutant hater in the movie.
-In the comic, Xavier had a son named David Haller who became known as Legion. He was mentally disturbed, suffering from multiple personality disorder. He had several different psychic powers, and each personality controlled a different power. One of them was a young girl. His left eye was green, and his right eye was blue. In the movie, Stryker has a son named Jason. He is mentally disturbed or catatonic. He has pychic powers. In the illusion he creates for Xavier, he appears as a young girl. His left eye is green. His right eye is blue. It would seem that this is supposed to be the movie's version of Legion. Some people also say that Jason is Mastermind aka Jason WyneGarn (or Jason Stryker, I guess in the movie) who has the telepathic ability to create illusion that are completely believeable in every way, sight smell, sound.
-Among the many easter eggs in the movie referencing other mutants, Singer placed an homage to popular X-man Archangel, who had been scrapped in early drafts of both X-Men and X-Men 2. Notice in the fight scene between Lady Deathstrike and Wolverine...up on the wall there are schematics and prototype sketches of Archangel's metal wings.
-In the first scene where we see Stryker, where he is fingering the stab mark on the President's desk, he appears to have on a ring with the Hellfire Club's (from the comics) trident symbol.
There's some other things that you might find interesting too, but these seemed to be some of the more interesting trivia/egg pieces that you might have missed:
http://www.moviemistakes.com/film.ph...05&type=trivia
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