Michael Sheen on Passion adaptation
13 April 2012 Last updated at 15:39 BST
Michael Sheen's Port Talbot theatre project, Passion, from April 2011 has been adapted for the big screen.
A cast of more than 1,000 people joined the actor in his hometown for 72 hours of open air performance last Easter.
Sheen said the film, The Gospel of Us, is director Dave McKean's response to the performance.