Kurtz (Heart of Darkness) circumstances and remote settings to assert power over others. It is widely believed that Conrad drew influence from these characters, as well as Stevenson's plot lines, when writing "Heart of Darkness". In the 1958 loose adaptation for the CBS television anthology series "Playhouse 90" Kurtz was played by Boris Karloff. This version uses the encounter between Marlow and Kurtz as its final act, and adds a backstory in which Marlow had been Kurtz's adopted son. Francis Ford Coppola's acclaimed Vietnam War film "Apocalypse Now" (1979) centers on the protagonist's mission to find and kill the renegade Colonel Kurtz (played by
Heart of Darkness Welles scholar Bret Wood called the broadcast of 13 March 1945, "the closest representation of the film Welles might have made, crippled, of course, by the absence of the story's visual elements (which were so meticulously designed) and the half-hour length of the broadcast." In 1991, Australian author and playwright Larry Buttrose wrote and staged a theatrical production of "Kurtz" (based on "Heart of Darkness") with the Crossroads Theatre Company, Sydney. The play was announced to be broadcast as a radio play to Australian radio audiences in August 2011 by the Vision Australia Radio Network, and also by the RPH