THE META-POST: Ridley Scott to help guide global YouTube film

He's taken on aliens and replicants and Roman gladiators to great effect, of course. But is Ridley Scott ready to take on the entire world?

We can hear the basso profundo voiceover trailer now: "One world. Six billion stories. Can one man and his friends tackle it all armed with only...YouTube!"

Come July 24, Scott (as producer) and Kevin Macdonald (director) and a few hundred other filmmakers are going to be mentally armed for their new mission:

YouTube is staging "Life in a Day," a project that will document July 24 with videos submitted by people the world over. Videos of -- what else? -- people living their daily lives. From that swath of uploaded vids, Scott ("Robin Hood," "Blade Runner") and Macdonald (who visited The Post a coupla years ago to make "State of Play") will quilt a feature-length documentary.

"I hope it will be something that will open people's eyes to the possibilities of user-generated film," Macdonald told the Associated Press. "Of course, it's a risk. It could be that I won't get anything interesting back. But I don't think that will be the case. I'm sure there will be some real gems, some real magic, which is what I'm looking for."

"Life in a Day" will premiere at the Sundance Film Festival in January and simultaneously streamed on YouTube. All entrants who footage makes the film will be credited as co-directors. Want to know more? Roll tape: