E! is reporting that Joss Whedon (Buffy the Vampire Slayer) is presently developing a documentary feature about the San Diego Comic-Con with Supersize Me director Morgan Spurlock.

The film is going to be cast with convention-going superfans.

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"They want to follow people for about three months leading up to this year's Comic-Con," a source close to the project said. "And then they want to film them there. They're looking at all types of people."

Whedon and Spurlock have not offered up any comments on the project.