Jean completely disintergrates Xavier, after killing Scott earlier in the movie. Magneto uses his powers to rip the Golden Gate bridge off the mainland and connect it to Alcatraz - where the brotherhood plan to kill Leech (the source of the cure). However - there are plenty of troops and guns - plastic cure darts which make Magneto's powers useless. Then the X-men arrive to hold the brotherhood back so that they can keep Leech safe. Storm electrocutes Callisto and Leech's powers causes Juggernaut to knock himself out. In the showdown between Iceman and Pyro, Iceman can't hold Pyro's flames and gets engulfed, but then he rises as the famous Iceman we remember from the comics (looking like he is made of ice) then knocks Pyro out. Beast then plunges a cure dart into Magneto and he is cured. Then Jean starts to disintergrate everyone who gets in her way. Logan makes his way towards her and his clothes disintergrate but his healing power manages to keep him alive. He yells "I love you" before plunging his claws into her. Back at school, Rogue returns and she is cured. She can touch Iceman now. Near the end of the movie, we see three gravestones - one for each Jean, Scott, and Xavier. The movie then moves on to a bunch of people playing chess and Magneto is by himself. His chess pieces are metallic and he moves his hand over one of them and it moves ever so slightly. It's a blink-and-you'll-miss-it scene. AFTER the credits, we see Dr Moira MacTaggart and a catatonic patient. He wakes and says, "Hello Moira," and she says, "Charles?". As Xavier had explained earlier on, he has now (possibly) put his consciousness into the catatonic patient.
comicfan
Chosen answer: Both Wolverine and Mystique's mutations cause them to age slowly; effectively the normal human body deterioration is slowed for them, giving them a younger physical age than their actual chronological age. If that mutation was removed, then the factor that slowed their ageing would no longer function, but they wouldn't abruptly "catch up" with their actual age, they would simply possess a body at their current physical age which would age as a normal human after that point. As for the adamantium lacing Logan's bones, were his healing factor removed, he might well swiftly suffer extreme levels of toxic shock, which would likely prove fatal.
Tailkinker ★