Other mistake: After Cable shoots his exploding plasma blast at the table that Gyrich, Trask, Hodge and the Leader are sitting at, the former three all evacuate the area while the Leader is still shown to be sitting at the table only a moment before it explodes, but he does not suffer any ill effects from the concussive blast or wooden shrapnel.
Other mistake: When Cyclops, Rogue and Jean Grey exit the War Room to depart for Genosha, at the top of the door frame there is a black spec moving around, possibly indicating that there was some debris or a clump of dust on the animation cells or the camera lens itself during filming.
Other mistake: When Storm sends the Genoshan prison guard flying into the Blob, he knocks the Blob over. The Blob's powers prevent him from being moved, hence why he is sometimes called the Immovable Blob. Other episodes demonstrated his ability to stand his ground against force, such as being punched by Rogue or being blasted by Cyclops' optical beam.
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