Continuity mistake: When Xavier is in the plastic prison with Magneto, at the end of this scene, you see Xavier put his hands on the doors of the prison, but in the following shot from outside the prison his hands have changed positions on the doors. (00:33:10)
Suggested correction: When Xavier is in the plastic prison with magneto, at the end of the scene Xavier has not changed his hands positioning, his right arm is up and his left arm is half way, on the following shot outside the prison his right arm is up and his left arm is up half way, it's a mirror image.
The mistake isn't saying his right and left hand have switched because they were confused about the "mirror" image. You can see the left arm is lower. At first the left elbow is above the frosted part, but in the next shot, it's well below and the hand is closer to the frosted part.
Stupidity: The prison where Magneto is held should have had a contingency plan just in case of escape, like machine guns outside the cell, or tranquilizer darts, or gas.
Suggested correction: What good would machine guns and tranquilizer darts be against a man who can literally control and manipulate metal? As for gas, the area outside the cell is so large that any gas would quickly dissipate before it could be effective.
