About the film
Spark: A Burning Man Story is a 2013 independent documentary film with its world premiere at the South by Southwest film festival (SXSW) in Austin, Texas. That is about some 60,000 or so people that gather from around the world for a week at the annual Burning Man festival in Black Rock Desert of Nevada to collaborate building a temporary city that operates on a "gifting" economy where nothing is bought or sold. Participants bring in everything; food, water, and shelter.
The week features large-scale art installations and partying, at the conclusion of the week a celebration in the ritual burning of a giant effigy, and after one week, take it all away.
From the film's Wikipedia article (CC BY-SA 4.0).