Continuity mistake: When Wolverine punches his lefthand claws into the wall, it is at bottom of a slab of concrete, and to the left of where four slabs intersect. When the shot changes, the puncture is now closer to the middle-right area of a slab. (00:13:16)
Continuity mistake: When Jean is saying "Where am I? What's happening?", she has a lock of hair draped over her left shoulder that suddenly turns a darker shade of red. (00:13:26)
Continuity mistake: When Wolverine is saying "Cyke has his problems, but he don't smell like a Morlock," Gambit's bare neck is visible, when it should be colored black because of his headgear. (00:14:11)
Continuity mistake: When Wolverine is slashing at Callisto's staff, it is light purple. When he completely shreds a center portion of it, that portion is blue, and when the shot changes, the rest of the staff is red. Additionally, the center section of the staff has reduced in length after Wolverine shreds it. (00:14:35 - 00:15:03)
Continuity mistake: When Rogue is checking on Gambit, the black X's on a red background on both of her jacket sleeves are colored entirely red. (00:16:02)
Continuity mistake: When Rogue is flying Gambit back to the mansion, the green sides of her uniform above her belt are incorrectly colored yellow, and Gambit's neck is bare, when it should be colored black because of his headgear. (00:16:14)
Continuity mistake: When Wolverine finds the unconscious Cyclops, Cyclops' sleeve is rolled all the way down. A couple of shots later, the sleeve is now rolled halfway up. (00:16:42)
Continuity mistake: When Wolverine returns to Storm and Jean, you can see no-one is in his immediate vicinity. A couple of shots later, Callisto and Annalee are standing by the tunnel entrance, a few feet to Wolverine's left. (00:17:05)
Continuity mistake: When Wolverine returns to Jean and Storm after finding Cyclops, he is standing in the opening of the tunnel. When the shot changes, he is standing near the ladder that was several feet behind him in the previous shot. (00:17:05)
Continuity mistake: When Callisto is saying "Now, for the animal," part of Cyclops' brown pants briefly turn white. (00:17:13)
Continuity mistake: When Wolverine drops Cyclops to the ground, Cyclops' body is at a roughly 45° angle to the tunnel entrance. When Jean intervenes, Cyclops' body is now parallel to the tunnel entrance. (00:17:19)
Continuity mistake: Callisto's staff is roughly the same length as her body. When she is holding the staff to Cyclops' throat, only the bottom quarter of it is visible, when the rest that isn't obscured by their bodies should be visible and pointing outwards at her left. (00:18:06)
Continuity mistake: When Storm and Callisto are about to engage in combat, they are using staves that look like lightsabers, with the hilts at the bottom. When they start striking at each other, both staves now resemble a double-edged lightsaber, with the hilt in the middle. (00:18:25)
Continuity mistake: When Storm is offering the Morlocks sanctuary at the mansion, several of the Morlocks that were standing dozens of feet behind Storm in a previous shot are now standing in front of her. They are then behind Storm again when she is helping Callisto to her feet. (00:18:58 - 00:19:45)
Continuity mistake: When Storm defeats Callisto in combat, Sunder and Tar Baby are in the far background, standing near a tunnel opening. When the shot changes, they are now standing in front of some machinery. (00:18:58)
Continuity mistake: When Xavier is talking to Jean and Cyclops at the end, the three of them, along with Storm, are all to the left of the bed Gambit is lying on, with Storm being behind Xavier, over his right shoulder, and a piece of machinery behind her. When the shot changes, it is a closeup of Xavier, and neither Storm, nor the machinery are visible over Xavier's shoulder. When Jean and Cyclops leave the room, Xavier is now at the foot of Gambit's bed, several feet away from Storm. (00:20:08 - 00:20:32)
