
Revealing mistake: When Cyclops asks Emma Frost what is happening when Shadow King is transferring his consciousness from Storm's mind into Wolverine's, you can see Cyclops and Emma have white outlines drawn around them, indicating they were drawn separately and composited into the shot. (00:19:06)
Revealing mistake: When the bald man possessed by Shadow King is walking towards the crowd gathered around Storm, he briefly disappears from the screen and reappears behind the fence post in the foreground. (00:09:18)