In the famous Scopes Monkey Trial, American schoolteacher John Scopes is found guilty of violating the Butler Act, which forbids the teaching of evolution in schools. The sensational trial pits two great legal minds—William Jennings Bryan and Clarence Darrow—against each other. Ultimately, Scopes and Darrow are destined to lose because the case rests on whether Scopes had violated the Act, not whether evolution is fact.