San Diego, CA (CNN ) -- The geek chic conference Comic Con kicks off Thursday in San Diego. The annual event is a four-day celebration of all things pop culture. Thousands of fans fawn over their favorite comic books, video games, television shows and movies.

It's an event where it's not uncommon to see life imitate art. Conference-goers frequently don costumes of their favorite super hero or Star Wars character.

They also get the chance to meet some of the stars from their favorite shows and films. And fans even get to see previews of upcoming movies and television seasons.

This weekend, Warner Brothers Pictures is expected to offer up previews of its upcoming films, "Man of Steel" and "The Hobbit: An Unexpected Journey."

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