The Phalanx Covenant: Part 1 - S5-E1
Other mistake: As usual, Wolverine's jeep is missing its windshield. (00:08:25)
The Phalanx Covenant: Part 2 - S5-E2
Other mistake: When Mr. Sinister, Beast, Forge, Warlock and Amelia are walking towards Magneto, they walk in place for several strides. (00:08:30)
The Phalanx Covenant: Part 2 - S5-E2
Other mistake: When Forge says "Now we need offensive power," he opens up a containment bubble with no one inside it. The bubbles are transparent, so he would have known whether or not someone was inside it and it would make no sense for him to open up an empty bubble since he was in need of reinforcements. (00:15:55)
Other mistake: When Omega Red brings the nuclear submarine to launch depth, the underwater cliff he parks it on is the exact same cliff where the submarine was originally located. (00:03:30 - 00:15:10)
Other mistake: After Omega Red stabilizes the nuclear sub while it is moving, the military somehow has a live video feed from outside the sub despite the fact that they didn't send any other submarines out to monitor the mission. (00:09:00)
No Mutant Is an Island - S5-E4
Other mistake: When Killgrave is standing in front of the projector, the projector image is cast onto his person matched color for color, except for when his own image in his true purple-skinned form appears and the image cast onto him maintains a normal flesh color. (00:11:20)
Other mistake: After helping Longshot in the alley, Jubilee tells Logan "Are you blind? He's on our side!" to which Logan responds "We don't know that." This dialogue is repeated verbatim when the Professor meets Longshot. In addition to being obviously re-used vocal lines, the context of Jubilee asking "Are you blind?" doesn't make much sense the second time.
Other mistake: The non-English wording on Cocteau's tombstone at the beginning of the episode is gibberish. It says "Pace et Rfouisat." When it is shown again at the end of the episode, it reads "Page et Resquiat." It appears that they were attempting to say "Rest in Peace," but they got their French and Latin confused. The proper French translation would be "Repose en Paix" and the proper Latin translation would be "Requiescat in Pace." (00:01:35)
Other mistake: When Wolverine and Captain America are scaling the cliff, their bodies glide up the cliff wall between arm and leg movements. (00:07:30)
Other mistake: The Red Skull reveals that Cocteau is the one who sounded the alarm on Wolverine and Captain America, but at the time the alarm starts going off, there are no switches on the walls for him to have pressed, not to mention he was shown to have been standing in the middle of the corridor out of arm's reach of either wall. (00:09:35 - 00:10:20)
Other mistake: When Justine is telling Wolverine about her father's accomplishments in the war, the cel shading is very fuzzy throughout the entire shot. (00:18:30)
Other mistake: When Wolverine is carving "HERO" into Cocteau's tombstone, he is shown to be using all three claws on his right hand to do so, but the carving looks like it was only carved with one sharp point. If he was using all three claws, each point of articulation for each letter should have been tripled. (00:19:05)
Other mistake: When Gambit pushes out the vent shaft cover from inside the ventilation system, his hands emerge gripping the outside of the cover. This would be physically impossible. (00:09:55)
Other mistake: When Rogue rendezvous with Beast, Xavier and Gambit, she pinches Gambit's cheek with her bare fingers. This should have caused her to drain his powers and render him unconscious. (00:14:10)
