The Unstoppable Juggernaut - S1-E8
Continuity mistake: When Jubilee is bringing up the message from Xavier, her head is below the top of her chair's headrest. When the shot changes, her head is higher than the headrest. (00:03:41)
The Unstoppable Juggernaut - S1-E8
Continuity mistake: At the beginning of the episode when the camera zooms into the Blackbird through its front windows, you can see Wolverine is sitting directly behind Cyclops, and Rogue is seated on Wolverine's left. A few shots later, Wolverine is now sitting where Rogue was seated. (00:02:04)
Continuity mistake: When Wolverine takes the spear out of Kiyoek's hands, it is silver. When he throws it into the water, it is brown. (00:14:36)
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 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 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 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 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 the X-Men discover Jean and Annalee in the small room, neither Jean or Annalee are casting shadows on the wall behind them. When the shot changes, their shadows are now on the wall. (00:12:37)
Continuity mistake: When Leech telekinetically splits up the mob, on his left are a man with a light blue shirt, followed by a man with an orange shirt, and man with a light blue shirt behind him. On his right are a man with a green jacket and yellow shirt, a man with an orange jacket and pink shirt behind him, and lastly, a man with a blue jacket and yellow shirt. When the shot changes, the men have not only swapped sides, but now it is two men in light blue shirts in front of the man in the orange shirt, and the man with the orange jacket and pink shirt is now just wearing an orange shirt, and he is standing in front of the man with the green jacket and yellow shirt, and the man with the blue jacket and yellow shirt is in front of him. (00:06:05)
Continuity mistake: When Leech begins to telekinetically steal fruit from the vendor cart, he is stealing a red apple and what appears to be an orange with a yellow peel. When the shot changes, the orange is now orange in color, and as the two pieces of fruit move towards Leech, the orange is on his right, and the apple on his left. When the shot changes, the orange is now yellow in color again, and the fruits have swapped sides. (00:05:52)
Continuity mistake: After Jean and Cyclops first kiss after she tells him to relax a little, his left arm is around her shoulder and it suddenly jump cuts to his side with his hand in his pocket. (00:05:37)
Slave Island - S1-E7
Continuity mistake: When Cyclops, Jean Grey, and Rogue enter the War Room to tell Professor X they are leaving for Genosha, the monitor Professor X is watching is level. A couple of shots later, the monitor is now slanted downwards. (00:08:04)
Slave Island - S1-E7
Continuity mistake: When Trask is approaching Storm and the other mutants, there is a cliff wall behind him. When the shot changes, it is now the sky behind him. (00:03:55)
Slave Island - S1-E7
Continuity mistake: When the Sentinel drops Storm, there is a female guard standing by its left foot. When Trask is approaching them, it is now a male guard by the Sentinel's foot. (00:03:49)
Slave Island - S1-E7
Continuity mistake: When the lead guard is explaining the inhibitor collars to the new prisoners in the wide shot, you can see Blob at the back of the group, and he is wearing tights, even though he is usually shown wearing a speedo. (00:02:24 - 00:03:41)
Continuity mistake: When Jubilee, Gambit, and Storm are first shown in their bungalow, there is a coffee table with a couple cups near the edge on the viewer's right, and some magazines on the top corner of the same side. A couple of shots later, the cups and magazines have all moved closer to the center of the table. When Gambit sits up, the magazines have disappeared entirely. (00:19:14)
Continuity mistake: When Storm, Jubilee, and Gambit are checking into their bungalow, the desk clerk has a rose on his jacket that is missing in a couple of shots. (00:13:10 - 00:13:51)
Continuity mistake: When Storm tells Gambit to put the discount placard back, he sets it in front of the clerk's computer. When the bellhop comes to get everyone's bags, the placard has disappeared. (00:13:24)
Revealing mistake: When Wolverine is skiing towards the land bridge, his whole body moves back several feet as the camera is panning right. (00:02:54)
Answer: Chris Potter, the original Gambit voice actor, did indeed quit the role in the 4th season. His last episode was The Phalanx Covenant Part 1 so it seems reasonable that Fox would limit the use of the character even though it was recast. It doesn't appear that Potter left the role due to animosity, he stated in an interview that he wished to play Gambit in the first live action X-Men film.
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