Jessica Chancellor, dressed as Batgirl, waits in line for her credential on Preview Night at Comic-Con International held at the San Diego Convention Center Wednesday, July 20, 2016, in San Diego. (Photo by Denis Poroy/Invision/AP Photo)





Fans try on plastic Conan O'Brien heads during Preview Night at Comic-Con International held at the San Diego Convention Center Wednesday July 20, 2016 in San Diego. (Photo by Denis Poroy/Invision/AP Photo)





An attendee dressed as Bat Girl arrives for the start of Comic-Con International in San Diego, California, United States, July 20, 2016. (Photo by Mike Blake/Reuters)





Attendees gather for the start of Comic-Con International in San Diego, California, United States, July 20, 2016. (Photo by Mike Blake/Reuters)





Characters from the television show “South Park” appear on the windows of a school bus outside the convention center hosting Comic-Con International in San Diego, California, United States, July 20, 2016. (Photo by Mike Blake/Reuters)





Helium-filled Powerpuff Girls figures float over a fountain as they are installed for the start of Comic-Con International in San Diego, California United States, July 20, 2016. (Photo by Mike Blake/Reuters)





Workers finish off an outdoor display of the television show “South Park” for the start of Comic-Con International in San Diego, California, United States, July 20, 2016. (Photo by Mike Blake/Reuters)





Attendees gather for the start of Comic-Con International in San Diego, California, United States, July 20, 2016. (Photo by Mike Blake/Reuters)





Workers put up scaffolding next to a hotel covered with an advertising sign as attendees gather for the start of Comic-Con International in San Diego, California, United States, July 20, 2016. (Photo by Mike Blake/Reuters)





Attendees dressed as Poison Ivy and Harley Quinn arrive for opening day of the annual Comic-Con International in San Diego, California, United States July 21, 2016. (Photo by Mike Blake/Reuters)





An attendee dressed as Sandman arrives for opening day of the annual Comic-Con International in San Diego, California, United States July 21, 2016. (Photo by Mike Blake/Reuters)





An attendee dressed as Bill Cipher arrives for opening day of the annual Comic-Con International in San Diego, California, United States July 21, 2016. (Photo by Mike Blake/Reuters)





Costumed attendees wait to have their weapons checked by police before entering opening day of the annual Comic-Con International in San Diego, California, United States July 21, 2016. (Photo by Mike Blake/Reuters)





Leah Thomas, dressed as the character Diva Plavalaguna from The Fifth Element movie, poses for a picture as she attends opening day Comic-Con International in San Diego, California, U.S. July 21, 2016. (Photo by Mike Blake/Reuters)





A San Diego police officer takes a second look at an attendee's Star Wars Tusken Raider costume while patrolling the convention floor during opening day of Comic-Con International in San Diego, California, United States July 21, 2016. (Photo by Mike Blake/Reuters)





A costumed attendee looks at her mobile phone during opening day of the annual Comic-Con International in San Diego, California, United States July 21, 2016. (Photo by Mike Blake/Reuters)





An attendee plays aVR game of Batman at a booth on the convention floor during the opening day of Comic-Con International in San Diego, California, United States July 21, 2016. (Photo by Mike Blake/Reuters)





An attendee dressed as Hulk Hogan walks the convention floor during opening day Comic-Con International in San Diego, California, United States July 21, 2016. (Photo by Mike Blake/Reuters)





An attendee dressed as The Joker walks the convention floor in costume during opening day of Comic-Con International in San Diego, California, United States July 21, 2016. (Photo by Mike Blake/Reuters)





Attendee Stacy Hunter of Temecula poses with Rugrats characters while on the convention floor during opening day of Comic-Con International in San Diego, California, United States July 21, 2016. (Photo by Mike Blake/Reuters)





Attendees in costume walk the convention floor during opening day of Comic-Con International in San Diego, California, United States July 21, 2016. (Photo by Mike Blake/Reuters)





Uglydolls are sown for sale on the convention floor during opening day of Comic-Con International in San Diego, California, United States July 21, 2016. (Photo by Mike Blake/Reuters)





Fans of superhero movies, comic books and pop culture walk the convention floor in costume during the opening day of Comic-Con International in San Diego, California, United States July 21, 2016. (Photo by Mike Blake/Reuters)





Costumed attendees wearing SpongeBob SquarePants character masks pose on the convention floor during opening day of the annual Comic-Con International in San Diego, California, United States July 21, 2016. (Photo by Mike Blake/Reuters)





Karen Ward and Samantha Ward dressed as characters from “Homestruck” attend the opening day of Comic-Con International in San Diego, California, United States July 21, 2016. (Photo by Mike Blake/Reuters)





Fans of superhero movies, comic books and pop culture walk the convention floor in costume during opening day of Comic-Con International in San Diego, California, United States July 21, 2016. (Photo by Mike Blake/Reuters)





Bersain Gutierrez, dressed as Superman, poses in front of the convention center before Preview Night at Comic-Con International held at the San Diego Convention Center Wednesday July 20, 2016, in San Diego. (Photo by Denis Poroy/Invision/AP Photo)





Bunny Knowble, dressed Galactus Eater of Worlds, crosses the street with the crowd on the way to Preview Night at Comic-Con International held at the San Diego Convention Center Wednesday July 20, 2016, in San Diego. (Photo by Denis Poroy/Invision/AP Photo)





Tank Castellanos stands in the cockpit of the life-sized Hot Wheels X-wing Fighter Carship during Preview Night at Comic-Con International held at the San Diego Convention Center Wednesday July 20, 2016 in San Diego. (Photo by Denis Poroy/Invision/AP Photo)





Cosplayers dressed as characters from the 2016 movie “Ghost Busters”, pose for a photo during the Preview Night before the San Diego Comic Con 2016 in San Diego, California, USA, 20 July 2016. Comic Con runs from 21 until 24 July. (Photo by David Maung/EPA)





Michael Escobedo watches his daughter as she examines a statue of DC Comics character Wonder Woman made from Lego during the Preview Night before the San Diego Comic Con 2016 in San Diego, California, USA, 20 July 2016. (Photo by David Maung/EPA)





Media and Fans gather as Warner Bros. Consumer Products celebrates 75 years of Wonder Woman by bringing the iconic Super Hero’s Invisible Jet during Comic-Con International: San Diego 2016 on Wednesday, July 20, 2016 in San Diego. (Photo by Christy Radecic/Invision for Warner Bros. Consumer Products/AP Images)





Media and Fans gather as Warner Bros. Consumer Products celebrates 75 years of Wonder Woman by bringing the iconic Super Hero's Invisible Jet during Comic-Con International: San Diego 2016 on Wednesday, July 20, 2016 in San Diego. (Photo by Christy Radecic/Invision for Warner Bros. Consumer Products/AP Images)





Makeup artist attends Comic-Con International 2016 preview night on July 20, 2016 in San Diego, California. (Photo by Matt Cowan/Getty Images)





Darth Vader cosplayer attends Comic-Con International 2016 preview night on July 20, 2016 in San Diego, California. (Photo by Matt Cowan/Getty Images)





Spider-Man cosplayer attends Comic-Con International 2016 preview night on July 20, 2016 in San Diego, California. (Photo by Matt Cowan/Getty Images)





Harley Quinn from “Suicide Squad” figurine displayed at Comic-Con International 2016 preview night on July 20, 2016 in San Diego, California. (Photo by Matt Cowan/Getty Images)





Wonder Woman display at Comic-Con International 2016 preview night on July 20, 2016 in San Diego, California. (Photo by Matt Cowan/Getty Images)





A fan wearing a Troll wig poses for a photo at the “Trolls” panel on day 1 of Comic-Con International on Thursday, July 21, 2016, in San Diego. (Photo by Chris Pizzello/Invision/AP Photo)





Fans pose for a photos with zombies at “The Walking Dead” booth during Preview Night at Comic-Con International held at the San Diego Convention Center Wednesday, July 20, 2016, in San Diego. (Photo by [Denis Poroy/Invision/AP Photo)