Weapon X, Lies, and Video Tape - S3-E19
Continuity mistake: During the flashback of Wolverine's adamantium bonding procedure, his nipples are absent or present depending on the shot. (00:04:05)
Weapon X, Lies, and Video Tape - S3-E19
Continuity mistake: After Beast opens the door for Wolverine, the room on the other side goes from being lit up to completely dark. (00:05:20)
Weapon X, Lies, and Video Tape - S3-E19
Continuity mistake: The helmet Wolverine picks up changes from gray to gold and then back to gray when he drops it. (00:05:25)
Weapon X, Lies, and Video Tape - S3-E19
Audio problem: When Wolverine says to Sabretooth "You taught me that you can't count on your friends," Sabretooth is the actually the one mouthing the last three words. And when Sabretooth says "I saved both our lives you..." Wolverine is the one mouthing the entire line. (00:07:55)
Weapon X, Lies, and Video Tape - S3-E19
Factual error: Beast inserts the video tape into the VCR upside-down. (00:13:00)
Weapon X, Lies, and Video Tape - S3-E19
Continuity mistake: When Professor Oyama is stating how he intends to test his adamantium bonding process on Wolverine, if you look closely you can see that Wolverine already has adamantium claws protruding from his hands. (00:13:20)
Weapon X, Lies, and Video Tape - S3-E19
Continuity mistake: When Beast is jumping over the railing, the X emblem in the middle of his belt is yellow when it is normally red. (00:13:55)
Weapon X, Lies, and Video Tape - S3-E19
Continuity mistake: Sabretooth's glove is instantly back on after he scans his bare hand. (00:14:35)
Weapon X, Lies, and Video Tape - S3-E19
Other mistake: The pickup truck Beast is driving appears to be missing its foot brake. (00:18:50)
Weapon X, Lies, and Video Tape - S3-E19
Continuity mistake: The metal tubes on the back of Wolverine's gloves disappear when he is bidding Silver Fox farewell. (00:19:15)
Weapon X, Lies, and Video Tape - S3-E19
Audio problem: When Wolverine is saying "Whatever his reasons were, he saved my skin back there," his mouth is not moving for most of the line. (00:20:00)
Weapon X, Lies, and Video Tape - S3-E19
Continuity mistake: Professor Oyama is shown to have a British accent in this episode. In the previous episodes he appeared in, he had an American accent.
One Man's Worth: Part 1 - S4-E1
Audio problem: The sound of Goliath's footsteps are slightly out of sync with the footsteps themselves. (00:06:30)
One Man's Worth: Part 1 - S4-E1
Continuity mistake: When Bishop and Shard first appear in the alternate present timeline, they appear right next to the doorway of the infirmary where Wolverine, Storm and others are taking refuge. When the shot changes to Bishop stating that they have arrived too late, he and Shard are suddenly several yards away from the doorway. (00:07:20)
One Man's Worth: Part 1 - S4-E1
Other mistake: Shard shows Storm and Wolverine surveillance footage of Trevor Fitzroy's deal with Master Mold, stating it was all they could get of their plan before the camera was discovered. However, the footage shows multiple camera angles that a lone mounted surveillance camera could not achieve. (00:11:30 - 00:12:35)
One Man's Worth: Part 1 - S4-E1
Continuity mistake: When the coffee shop owner is strong-arming Xavier, he is first shown gripping Xavier by the collar of his sweater. A couple of shots later, the coffee shop owner's hand is gripping the collar from inside the sweater. (00:15:30)
One Man's Worth: Part 1 - S4-E1
Character mistake: When the civilians are fleeing the coffee shop, there are two spelling errors on the coffee shop's marquee. Firstly, the name of the coffee shop is Rip Van Winkle, but on the marquee, Winkle is spelled as "Winkile." To the right of that, Coffee House is spelled as "Coffe House." (00:16:55)
One Man's Worth: Part 1 - S4-E1
Audio problem: The theme song during the intro as well as the character's voices for this episode sound like they were recorded at a higher pitch than normal.
One Man's Worth: Part 1 - S4-E1
Continuity mistake: Throughout the episode, the butt of Bishop's gun is brown when holstered. When he is firing the gun towards the end, the butt is gray.
One Man's Worth: Part 2 - S4-E2
Audio problem: Storm's mouth is closed when she says "Fitzroy planted a bomb." (00:02:55)
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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