Life in a Day is a crowdsourced dramadocumentary film comprising an arranged series of video clips selected from 80,000 clips submitted to the YouTube video sharing website, the clips showing respective occurrences from around the world on a single day, July 24, 2010.
The film was produced by Scott Free Productions and the YouTube video sharing site. The film was distributed by National Geographic Films. The visual effects were produced by Lip Sync Post.The film was the creation of a partnership among YouTube, Ridley Scott Associates and LG electronics, announced on July 6, 2010. Users sent in videos supposed to be recorded on July 24, 2010, and then Ridley Scott produced the film and edited the videos into a film with director Kevin Macdonald and film editor Joe Walker, consisting of footage from some of the contributors. All chosen footage authors are credited as codirectors. ........
Source: Wikipedia