On 24 July film-makers will have the opportunity to take part in a cinematic experiment aiming to create the world’s largest feature film.

Entrants to YouTube’s Life in a Day project, which boasts film director Ridley Scott as its executive producer, will have 24 hours to record a snapshot of their life on that date and upload it to the project’s YouTube channel. The best footage will be selected and edited by director Kevin Macdonald for a feature film to premiere at the 2011 Sundance Film Festival.

Anyone whose footage is used will be credited as a co-director, and all submissions will feature on the Life in a Day YouTube channel irrespective of whether they make the final cut.

The following instructions to take part are posted by the project:

• Visit the Life in a Day channel and learn more about the project. Be sure to read through the steps you need to take to participate and the guidelines for creating your video.  Also check out some of the sample videos for inspirational ideas.
• On July 24, capture your day on camera.
• Upload your footage to the Life in a Day channel before July 31.