X-men- First Class -

It was Erik who solved the equation. "Keep him busy," he muttered, then reached out. Not at Shaw, but at the coin on the floor of the submarine. The very coin Shaw had used to kill Erik’s mother. He pulled it. Through steel, through water, through the chaos. It shot up through the deck, through the air, and hovered, trembling, an inch from Shaw's forehead.

"I can feel the sailors," Charles whispered, as they hovered outside the sub's hull in a stolen helicopter. "They're scared. They're just boys. They don't want this war." X-men- First Class

"No." Erik turned to the others—to the survivors, the beasts, the angels, and the outcasts. "Who is with me?" It was Erik who solved the equation

But the coin moved. Slowly at first, then with the finality of a guillotine. It punched through Shaw's skull. The helmet fell. The man fell. And the silence that followed was more terrible than the explosions. The very coin Shaw had used to kill Erik’s mother