Purgatory: Entering John Carpenter's 'Escape From New York': A brand new retrospective documentary produced by Ballyhoo Motion Pictures and featuring interviews with writer Nick Castle, cinematographer Dean Cundey, composer Alan Howarth, production designer Joe Alves, special visual effects artist/model maker Gene Rizzardi, production assistant David De Coteau, photographer Kim Gottleib-Walker, Carpenter biographer John Muir, visual effects historian Justin Humphreys, and music historian Daniel Schweiger.