Re: X-Men First Class v.s Captain America TFA
Actually, Xavier's paralysis IS NOT a continuity error YET. There is still a nearly 50 year gap between FC and X1, so they could easily explain that away. Xavier has regained the ability to walk and then been paralyzed again several times in the comics. It's the same for people who argue that Mystique poisoning Xavier contradicts her sister-like relationship with him in FC. Something may very well have happened in the FIFTY years between FC and the OT to turn her against Xavier.