Cast members of 'Teenage Mutant Ninja Turtles' Greg Cipes, Jason Biggs, Mae Whitman, Sean Astin and Rob Paulsen pose for a photo with the turtles at the Dawn Of The Con at Petco Park during Comic-Con on Thursday, July 12, 2012, in San Diego. (Photo by Joe Kohen/Invision for Nickelodeon/AP Images)

Photo by: Joe Kohen

Cast members of 'Teenage Mutant Ninja Turtles' Greg Cipes, Jason Biggs, Mae Whitman, Sean Astin and Rob Paulsen pose for a photo with the turtles at the Dawn Of The Con at Petco Park during Comic-Con on Thursday, July 12, 2012, in San Diego. (Photo by Joe Kohen/Invision for Nickelodeon/AP Images)