Some post-Classical Hollywood Westerns began to question the ideals and style of the traditional Western. These Revisionist Westerns placed the context of the Native Americans and cowboys alike in a darker setting. They depicted a morally questionable world where the heroes and villains oftentimes resembled each other (see antihero, sympathetic villain) more closely than in earlier films. The concept of right and wrong became blurred in a world where actions could no longer be said to be good or bad. Whereas in a majority of the classical western films in which the ethics were clear and defined, the Revisionist film looked to paint a moral "grey" area where people had to adapt in order to survive. This led to depictions of outlaws such as "Butch Cassidy and the Sundance Kid" as protagonists rather than villains.