Michael Fassbender: The young Magneto had no problem showing off his goods in "Shame," so it was inevitable he'd be a top pick for a "50 Shades" adaptation. As of last summer, however, he had never heard of the source material. “I don’t even know what that is,” Fassbender told the Sun Times. “I’ve heard people saying stuff about my casting and it’s on the Internet … Nobody has approached me.”