Continuity mistake: In the wideshot of Magneto and Xavier scaling the cliff, Xavier is shown below and to the left of Magneto. When the shot changes, Xavier is now directly beneath Magneto. (00:02:25)
Other mistake: When Xavier asks Magneto how much further they have to reach the top of the cliff, Magneto tells him he would rather not know, suggesting they still have a long way to go. However, in the wideshot of the sky-riders flying in to attack the two, you can see Magneto is about three times the length of his own body from the top, and according to the book "X-Men: The Art and Making of the Animated Series," Magneto is 6 feet tall. This means he is only about 20 feet, give or take, from the top, which isn't all that far in terms of climbing a cliff. (00:02:44)
Character mistake: When wondering how close they are to the top of the cliff, Xavier asks Magneto "How much further?" The word "further" is used for non-measurable or figurative advancement. He should have asked how much farther, as that refers to actual distance between objects. An educated man like Xavier would certainly know the difference between the two. (00:02:44)
Suggested correction: While "farther" is used for physical distance, further can be too, especially in British English. Farther also tends to be used for a measured physical distance, so if the actual distance isn't known, further can be used. What Charles said is grammatically correct.
Other mistake: After Magneto says "Trust me, you'd rather not know," a hole appears in his pants around his right hamstring and then quickly disappears. (00:02:50)
Continuity mistake: When Magneto is saying "Nicely played, Charles," the X emblem on Xavier's left shoulder is missing. (00:03:17)
Continuity mistake: When the lone sky-rider is flying towards Magneto, Magneto is grasping the cliff with his right arm. When the shot changes, Magneto is suddenly swinging from a tree branch growing out of the cliff in order to kick the rider off his pterodactyl. (00:03:22)
Continuity mistake: When Amphibious is saying "Now we take them to the master," he is standing behind Lupo and Xavier. A couple of shots later, he is standing several feet away from them, next to a cliff wall. (00:04:45)
Continuity mistake: When Jean plays the message from Morph, the analog meters below the player are white. When the shot changes, they are brown. (00:05:09)
Continuity mistake: When Morph is performing his one man show, he is standing in front of a red and yellow stained-glass window. After he drinks the potion, the background behind him is now dark blue draping. It then becomes the stained-glass window again after he transforms into Mr. Hyde. (00:05:35 - 00:06:00)
Factual error: When Morph, in the guise of Mr. Hyde, is asking the X-Men who they are, the hair on his reflection in the mirror is parted in the same direction as the real person. (00:06:32)
Continuity mistake: When Morph collapses to his knees in his dressing room, his yellow waistband is now white. (00:07:00)
Continuity mistake: When Kazar tackles Barbarus, Barbarus ends up lying on the ground between Kazar and Xavier and Magneto. When Xavier and Magneto begin running with Kazar, nothing about their stride indicates that they step over Barbarus, suggesting he is suddenly no longer in that spot. (00:08:50)
Other mistake: Ka-Zar refers to Xavier by name despite only having just met him and Xavier never telling him his name. He even asked Xavier who he was only moments before. (00:09:19 - 00:10:17)
Continuity mistake: When Xavier is telling Kazar that Amphibious told him the Savage Land mutates were following a new master, his black shirt is suddenly the same color as his flesh. (00:09:47)
Continuity mistake: When Morph, Jean, and Cyclops are all knocked unconscious by Ruckus' scream, Morph falls to his right, and Jean and Cyclops fall forward. A couple of shots later when their bodies are shown on the ground, Morph is suddenly between Jean and Cyclops, despite falling the opposite direction of them. (00:11:30)
Revealing mistake: When Wolverine notices Slab running off with Jean Grey, you can see the edge the animation cel moving across the screen from left to right. (00:12:34)
Continuity mistake: When Morph is laughing at Wolverine, the colors on the X emblem on his waistband have been inverted. (00:12:51)
Continuity mistake: When Kazar is taming the plesiosaur, its color changes from gray, to brown, and back to gray. (00:14:00)
Continuity mistake: When Magneto, Kazar, and Xavier are ambushed in the citadel, they are standing near the doorway leading to the stairs. When the shot changes, they are suddenly several yards into the room. (00:14:55)
Other mistake: When Magneto is asking how the Savage Land mutates were able to infiltrate his citadel, Amphibious tells him it's because Mr. Sinister long ago found his secret passage. The room they are in leads to a balcony, and has no door sealing off the balcony. In a world of superpowered beings, some of whom can fly, it wouldn't take much effort to get into a building that isn't closed off. Finding a secret passage from the ground level would be unnecessary. (00:15:00)
