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."
Character mistake: When Beast is showing Gambit and Rogue the news report about Cannonball, it is shown to be featured in a magazine called Philologist's Quarterly. When Beast leaves the room, he remarks "Ah, there's my 'Philologist's Quarterly'." as if he didn't already see it.
Character mistake: When Beast discovers that Iceman has escaped from the containment device, he takes several steps in the room before he even realizes that Iceman is gone. The device was not obscured by anything, so Beast should have realized as soon as he entered the room that Iceman was gone.
Character mistake: When the two security guards are arguing over whether heat or humidity is worse, one guard says "It's midnight, and it's still 97°." However, moments before that the same security guard checked the temperature on his computer and it indicated it was 85°.
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