The mutant "cure" touches off major controversy, with about as many of the mutants wanting it as being repelled by it. Rogue, who cannot touch anyone normally, wants to go for the cure. The other X-Men want to hang onto their powers. Magneto correctly divines the drug's potential as an anti-mutant weapon, and begins to rally his terrorist mutant brotherhood to destroy the drug and its source--an innocent mutant boy.
Magneto, who was rather a Robin Hood figure in the second film, reveals the extent of his monomania as he callously abandons or sacrifices fallen followers. On the other hand, he has never been more powerful, even in the comic books. Xavier, we find is far from infallible, as his early inexpert tampering with Jean's mind "for her own good" comes back to haunt him in a terrible retribution.
The "cure" raises some significant questions. In the movie, Rogue is the only mutant we see much of who wants the cure because of the bad effect her powers have on her life. In the movie world, most of the mutants can "pass" in that they look human most of the time. This is different from the Marvel comics, where it is more common for mutants to have obvious stigmata. The cure debate raises the question of "class" among mutants, which, in typical Marvel fashion, is not given an answer.
Of course, there is the question of whether or not the "cure" will in some way become mandatory, for public health or public safety reasons, but another issue, tyranny of opinion is raised by Ian McKellen's public remarks--that if there were a "cure" for homosexuality, people would want to cure him. With the ongoing battle of homosexuals and transgenders for acceptance based on the idea that they are naturally occuring human variations, to say there was a cure or "normalization" available, anyone who did not accept it would be further marginalized. "You must LIKE being a (fill in the blank)!" "We knew all along that you were a willful (pervert) (alien) (other)".
And then there's a further question of choice: how many parents, on finding that their child had "the Mutant X gene," would not opt to have them given "the cure," a choice similar to that made by parents of intersexed children so that they have a "normal" life--often with tragic results?
Generally well acted by the familar crew, supported by the numerous newcomers on both the good side and the bad. Some excellent effects, and a couple of howling continuity errors, one of which must remain behind the cut along with other spoilers. The one that doesn't is, that in the "danger room" sequence, they combat what ends up being a giant robot that is obviously based on the comic Sentinels, which don't exist in the movie world yet. As for other issues, they are in the Spoiler section that follows. However: STAY TO THE END OF THE CREDITS! Also fun: trying to match the new mutants in Magneto's band to the not-necessarily comic-accurate character names they are given--.
In his raid on Worthington's Alcatraz Isand base, Magneto literally reroutes the Golden Gate Bridge to get his army of mutants across the Bay. (Never mind that there's lots of less flashy and equally as effective ways he could have done it--the man has a certain megalomanaical style--). The assault starts in afternoon and the abandoned cars remaining on the bridge have their lights off. When the climax ends after nightfall, the ruined bridge is outlined by the vehicle headlights. Who turned them on?
Some sources have referred to this as the "final" X-Man film, although solo Wolverine and perhaps Storm spin-offs have been mentioned. (Certainly Storm gets a lot more to do this time.) The body-count makes this rather likely as we have Scott Summers missing and presumed dead (although in comics you never know), Mystique depowered, Xavier disintegrated by Phoenix Jean, Magneto depowered, and Jean Gray dead (again). However, Jean IS the Phoenix, after all; we see Magneto beginning to manifest a whiff of resurgent power (and didn't he have that mutant-making machine in number one?) and Xavier speaks to Moira McTaggert from the body of a brain-dead man in the post-credit teaser--so nothing is certain.
Storm seems to be taking over the school, Beast is the new U.S. UN ambassador (presumably heralding a new era of mutant-friendliness on the part of our government) and Bobby Drake and Rogue continue their rocky relationship. However there are some seriously unanswered questions/plot holes, such as what happens to Worthington's cure, the cure weapons, and the child whose DNA was the source of the drug?
In some ways the film's reach exceeds its grasp, but that's not all bad. Recommended for fans of the series and of superheroics generally.