Davien O., dressed as Marvel villian Mr. Sinister, attends the first day of the 45th annual San Diego Comic-Con, in San Diego California July 24, 2014. The four-day pop culture extravaganza celebrates film, TV, video games, comic books, costumes and other popular arts. More than 150,000 fans are expected to attend the sold-out event. (Robyn Beck/Getty Images)
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