Corrected entry: In the scene in the museum food court when Professor Xavier freezes time, just before the shot cuts away from the boy who has been set on fire by Pyro and extinguished by Iceman you can see a big drop of the SFX "ice" fall from his chin. If time was frozen for him then obviously it wouldn't do that.
Corrected entry: When the X-Mansion is being attacked, Wolverine jumps off the stairs onto two soldiers and throws them backwards with his claws. The soldiers are level with his wrists as they begin flying back. If they had been thrown in such a way, they would have followed the same path through the air as Wolverine's claws. (00:44:10)
Corrected entry: How did Stryker manage to get a hold of Cerebro, when Professor X is the only person that's capable of entering the room?
Corrected entry: In the middle of the Wolverine/Deathstrike fight, there is a scene showing Iceman, Rogue, and Pyro waiting on the jet. Pyro stands up and says, "that's it," and lowers the ramp to leave. Iceman jumps up and says, "Paul, where do you think you're going?" The problem is, it was established at least twice (most notably when he's talking to Magneto) that Pyro's birth name is John. Even odder, the actor who plays him is Aaron Stanford, so it makes absolutely no sense for Iceman to call him Paul. (01:38:05)
Corrected entry: In the climax, when Wolverine struggles getting towards Jean, some of the flesh on his body is ripped off by Jean's mutant power. The flesh then is quickly back by Logan's rapid healing ability. But the hair on his chest also comes back the same as it was before. This is not supposed to happen. (01:32:35)
Corrected entry: If Kurt didn't know who he was before he attacked the President, how did he know he did the angelic symbols himself?
Corrected entry: At the end of the film, when the President is making his speech, he is interrupted by the X-Men led by Xavier who has stopped all the presidential staff so he can reveal info about Stryker to the President. This is all well and good but what all about the tens of thousands of Americans who will be watching? They will have seen all of Xavier's brief, unless he could stop that many people without seeing them, or know who to stop out of the entire country.
Corrected entry: If you have the DVD of X Men 2, in the scene where Rogue falls out of the jet, right after the shot where Bobby yells out "Rogue" the camera shot moves to Logan who Shouts "No" (If you have the DVD) slow the movie down by 1/2 or a 1/4 and as you watch, you will see Logan look strait into the camera as soon as he turns around. (01:08:10)
Corrected entry: Magneto only escapes his prison by ripping the excess iron out of the guard's blood, which Mystique injected. There was an even better opportunity to escape earlier, when Miss Nagai came in and attacked Cyclops. Miss Nagai has an adamantium skeleton, just like Wolverine, and he could've easily ripped this metal out instead.