On Easter weekend in 2011, a 72-hour non-stop theatrical performance took place across Michael Sheen’s hometown of Port Talbot, Wales. Michael played The Teacher in a play inspired by the passion of Christ, where the focus is on the town itself and its people. The play was based on a novel by Owen Sheers, who wrote the script, and was co-directed by Michael Sheen and Bill Mitchell. Michael was also creative director of the play, which he worked on for several years before the one-off performance.
People unable to go to Port Talbot for the play could take part via the website, port-talbot.com (no longer active). You can see a snapshot of the website on archive.org
The National Theatre Wales page on the play, which includes a downloadable programme.
Also see the film of the play, The Gospel of Us