Witness is a 1985 Amishsploitation-thriller staring Harrison Ford and Kelly McGillis and directed by Peter Weir. Three writers share credit: William Kelley, Pamela Wallace and Earl W. Wallace. Winning Oscars for its screenplay and editing as well as opening the Cannes film-festival, and being the eighth highest grossing film in the US in 1985, the film was a commercial and critical success. It is not yet available on Blu-Ray in the US, though international editions (which are basically the same disc) are available. I thought I’d compare the Blu-Ray with the iTunes 1080p edition to see which is worth your time.