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
Edge of Darkness (2010 film) and dubbed) to replace his score with a new one by Howard Shore. On aggregate reviewer Rotten Tomatoes, the film has an approval rating of 56% based on 203 reviews; the average rating is 5.3/10. The site's critical consensus reads, "For better and for worse, "Edge of Darkness" offers vintage Mel Gibson, working within the familiar framework of a bloody revenge thriller." On review aggretator, Metacritic, which assigns a weighted average score out of 1–100 reviews from film critics, has a rating score of 55 out of 100, based on 34 critics, indicating "generally mixed or average reviews". Film critic