War of the Coprophages featured insect-like robots designed by roboticist and author Rodney Brooks. Morgan was also inspired by Orson Welles's 1938 radio broadcast of H.G. Wells's book "The War of the Worlds" (which had caused mass hysteria), with the episode's title being a direct reference to the novel (with the last part of the episode's title, "coprophages", referring to a dung eater). The town featured in this episode also takes place in—Miller's Grove—is a play on Grover's Mill, the setting of Orson Welles's 1938 radio adaptation. Originally, a scene featuring the sheriff discussing a noted case of hysteria from the 1930s was planned
Orson Welles 28, 1941 – January 22, 1942. Throughout the shooting of the film Welles was also producing a weekly half-hour radio series, "The Orson Welles Show". Many of the "Ambersons" cast participated in the CBS Radio series, which ran September 15, 1941 – February 2, 1942. At RKO's request, Welles worked on an adaptation of Eric Ambler's spy thriller, "Journey into Fear", co-written with Joseph Cotten. In addition to acting in the film, Welles was the producer. Direction was credited to Norman Foster. Welles later said that they were in such a rush that the director of each scene was determined