I read two Joss Whedon comics in succession and promptly came down with a Jossession. Did you know he wrote the Toy Story screenplay? I didn't! I knew he wrote the Alien Resurrection screenplay but that the movie bears little resemblance to his script. Also he is directing the Avengers movie! But can you believe that I've never seen any Buffy or Angel? One of the comics I read of his was Fray, which is about a slayer in the future, but that's my only foray into the Buffyverse. Anyways. Big fan of Firefly, so I have some Whedon cred.
So then I was wondering if he was perchance coming to Comic-Con. Turns out he's directing a documentary about it! Also he will be in a panel discussion with someone by the name of um, who is it again, J.J. Abrams.