(CNN) -- "What do you love? What do you fear? What's in your pocket?" These were among the questions asked of the world by director Kevin McDonald when shooting "Life in a Day," the remarkable crowd-sourced film that debuted on YouTube in 2011. Produced by Hollywood blockbuster brothers Ridley Scott ("Alien," "Blade Runner") and Tony Scott ("Top Gun"), and edited from 81,000 submissions from 192 countries, "Life in a Day" is a video mosaic of intimate moments from around the world all shot on one random day -- July 24, 2010. The documentary has racked up nearly 7.8 million views on YouTube to date.
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Director brother duo tapped for new Seoul crowd-sourcing movie
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Participants upload videos to official channel; prizes include cars, plane tickets
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Despite reputation for violent movies, Park Chan-wook excited to deliver message of hope
Despite being the most celebrated director from the country, Park Chan Wook may be considered an odd choice for an ambitious global marketing effort for @placeholder tourism.