Cut to hordes of costumed men and women frantically descending on San Diego. The entire history of Comic-Con would have made for a fascinating documentary. Spurlock, instead, covers this ground in about 30 seconds and focuses instead on a half-dozen or so convention-goers in 2010. It's a move that could have resulted in something limp, or worse, mean-spirited. Thankfully, Spurlock treats his subjects with reverence, and they're diverse and their stories interesting enough that we feel invested in these very micro-level problems.