StarWars.com:
In conjuntion with Sky Movies' airing of the entire Star Wars Saga, a one-time only live performance of Star Wars -- Shortened!; a 20 minute abridged version, covering all plot points from all six films; will also be broadcast. The one-night only perfomance at the Criterion Theatre on August 17th will air on Sky Movies the following week. Check out the above link for more information.