High Quality Content by WIKIPEDIA articles! Americathon (also known as Americathon 1998) is a 1979 American comedy film starring John Ritter, Fred Willard, Peter Riegert, Harvey Korman, and Nancy Morgan, with narration by George Carlin, based on a play by Firesign Theatre alumni Phil Proctor and Peter Bergman. Others credited in the film include Jay Leno, Meat Loaf, Tommy Lasorda, and Chief Dan George, with a musical performance by Elvis Costello.