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From left, actors Taylor Lautner, Mackenzie Foy, Kristen Stewart and Robert Pattinson attend "The Twilight Saga: Breaking Dawn - Part 2" during Comic-Con International 2012 at San Diego Convention Center on July 12, 2012, in San Diego.
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From left, actors Sylvester Stallone, Arnold Schwarzenegger and Terry Crews speak at "The Expendables 2: Real American Heroes" panel during Comic-Con International 2012 at San Diego Convention Center on July 12, 2012, in San Diego.
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Musician Chris Daughtry, left, and actor Kellan Lutz attend DC Entertainment's "Darkness & Light" party at San Diego Comic-Con International benefitting We Can Be Heroes on July 12, 2012, in San Diego.
Musician Bruce Springsteen performs with his E Street Band at Synot Tip Arena in Prague, Czech Republic, July 11, 2012. Max Weinberg, rear, plays drums and Steve Van Zandt, right, sings and plays guitar.