VIDEO : Dave Franco and Emma Roberts Give Fans Special Treat At Comic Con

Actors Dave-Franco/'> Dave Franco and Emma Roberts met with fans who queued around the blocks and aisles in the expansive hall at the convention, signing autographs and promoting their latest film ?Nerve.? "This many people, you'd expect riots and chaos and stuff. ?Nerve,? based on the novel by Jeanne Ryan and out in theaters on Wednesday, follows a fictional new online app for young people that lets them be players or watchers. ?People are becoming more and more obsessed with online games, app games and interacting with reality and fantasy.?