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Elizabeth Lau, 33, gets her photograph taken by her husband, Steve Lau, 32, at the preview evening event at Comic-Con 2014 in San Diego, California, USA, 23 July 2014. Image Credit: EPA

Like Batman responding to a beaming Bat signal in the sky, pop-culture fans are streaming to San Diego for the 45th annual Comic-Con pop culture extravaganza.

The four-day festival celebrating film, TV, video games, comic books, costumes and other popular arts kicked off with a preview on Wednesday night and goes full force on Thursday at the San Diego Convention Centre.

More than 150,000 fans are expected to attend the sold-out event, where studios will offer exclusive previews of their latest properties.

Television is making a greater splash than in previous years, edging into the 6,500-seat exhibition hall that’s traditionally been the main home for movies.

Game of Thrones and The Walking Dead are major TV draws, while the Marvel panel and Warner Bros’ The Hobbit are among anticipated film offerings.