YouTube’s worldwide documentary “Life in a Day“, produced by Ridley Scott and directed by Kevin MacDonald will premier at the Sundance Film Festival on January 27, 2011 at 8:15PM EST.

The 94 minute movie will be shown during a live broadcast from Sundance, followed by a live Q&A from MacDonald. YouTube will then replay the movie shortly afterwards, and will release it as a YouTube video later in the year.

According to a post on the YouTube Blog, the hour and a half film – which documents one specific day in July earlier this year, was culled from 5,000 hours of video from 80,000 users in 192 countries – all from that one day. Here’s a video message from MacDonald, who seems like one tired guy (you probably would be too if you just turned 5,000 hours of video into 1.5 hours):