Academy Award-winning director Kevin Macdonald (State of Play, The Eagle) has completed work on Life in a Day, a cinematic experiment to capture life around the world in a single day. Drawing from 4,500 hours of footage sent in from 192 countries, the film was produced by Ridley Scott's Scott Free UK in partnership with YouTube. Contributors whose submissions were chosen are credited as co-directors, and 26 of them have been invited to attend the world premiere of the film on Thursday, January 27, as part of the 2011 Sundance Film Festival.

Viewers worldwide are invited to tune into the live stream on youtube.com/lifeinaday for their only chance to see the film before it's available in select theaters, on demand and permanently online later in 2011. Following the premiere, festival director John Cooper will moderate a global Q&A with Kevin Macdonald and the 26 filmmakers. For viewers who will be unable to tune in at 6:00pm MT, the film will be re-broadcast on youtube.com/lifeinaday on January 28th at 7pm in their local time zone, and subtitled in 25 languages.

The 26 contributors invited to attend the premiere span the globe from Egypt to the Ukraine. Their film clips capture a wide array of life experiences, including a Korean man who has been cycling the world for nine years, a young mother battling cancer, and a Russian free-runner making Moscow his playground.

Related: Netflix Won't Lose Disney Movies Permanently or as Soon as Thought

Executive producer Ridley Scott says, "I am delighted that we're bringing together contributors from all over the globe in such a unique way. I believe Life in a Day will inspire more people to pick up a camera and tell their stories."

"The process of making Life in a Day has been such an inspiring one for me and my team who helped view and log all 4,500 hours of footage we received. Everyday we felt like we were seeing 20 different possible films as we got insights into so many people's lives," says Kevin Macdonald. "It is a testament to the skill, insight and generosity of so many contributors that we have ended up with such a powerful, cohesive and emotionally engaging film - which really gives you a flavour of what it was like to be alive on 24th July 2010."

The contributors (either filmmakers or subjects of the submitted clip) invited to the Sundance premiere of Life In A Day are:

Contributor - Shoot location