Local News 'Twilight' Co-Stars Surprise Fans At Comic-Con July 21, 2011 / 1:11 PM EDT / CBS News (Photo by Michael Buckner/Getty Images for Summit Entertainment) Summit Entertainment Presents "The Twilight Saga: Breaking Dawn - Part 1" Comic-Con Break Of Dawn Fan Wake-Up Call (Photo by Michael Buckner/Getty Images for Summit Entertainment) Summit Entertainment Presents "The Twilight Saga: Breaking Dawn - Part 1" Comic-Con Break Of Dawn Fan Wake-Up Call (Photo by Michael Buckner/Getty Images for Summit Entertainment) Summit Entertainment Presents "The Twilight Saga: Breaking Dawn - Part 1" Comic-Con Break Of Dawn Fan Wake-Up Call (Photo by Michael Buckner/Getty Images for Summit Entertainment) Summit Entertainment Presents "The Twilight Saga: Breaking Dawn - Part 1" Comic-Con Break Of Dawn Fan Wake-Up Call (Photo by Michael Buckner/Getty Images for Summit Entertainment) Summit Entertainment Presents "The Twilight Saga: Breaking Dawn - Part 1" Comic-Con Break Of Dawn Fan Wake-Up Call (Photo by Michael Buckner/Getty Images for Summit Entertainment) Summit Entertainment Presents "The Twilight Saga: Breaking Dawn - Part 1" Comic-Con Break Of Dawn Fan Wake-Up Call (Photo by Michael Buckner/Getty Images for Summit Entertainment) Summit Entertainment Presents "The Twilight Saga: Breaking Dawn - Part 1" Comic-Con Break Of Dawn Fan Wake-Up Call (Photo by Michael Buckner/Getty Images for Summit Entertainment)