In the scene where Dr. Octavius is first testing his fusion in front of the reporters, and the mini star starts sucking all things metal into it, there is a shot of Dr. Octavius's wife. If you look closely she is wearing earrings. When everyone else's jewelry is being sucked into the star, hers is keeping perfectly still.
Not all metals are magnetic. Have you ever tried to stick a magnet to titanium? It won't work because titanium is not magnetic.
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tombstoner35 writes:
I agree. I don't remember but in my science class I think my teacher said that only Iron, Cobalt and Nickel were attracted by metal. I wasn't really paying attention, but oh if my science teacher is reading I was really paying attention, but the earings could have been made of some other material.