VIDEO : Comic-Con Kicks Off with 'Star Trek Beyond' Premiere

Karl Urban stars as Dr. "Bones" McCoy in "Star Trek Beyond." Paramount SAN DIEGO -- The hordes of zombies, legions of Stormtroopers, leagues of superheroes and crews of Starfleet officers have already begun crawling, marching, flying and beaming into San Diego for that other big convention this week: Comic-Con International. 26 Photos The craziest costumes at Comic-Con 2015 Comic-Con is expected to draw more than 160,000 fans for high-energy sessions featuring casts and crews from such films and TV shows as "Game of Thrones," ''Star Trek," ''Suicide Squad," ''South Park," ''Teen Wolf," ''Aliens" and "The Walking Dead."