Instruct: Classify a given review into positive or negative sentiment.
Query: science fiction in the social sphere.....

Although "The Planet of the Apes" and its subsequent sequels were not great movies, they do represent something that we do not see a great deal of in science fiction movies today, social commentary. The "Planet of the Apes" depicts an intelligent sentient group of beings that is first suppressed, then turns the tables on its masters, and finally comes to live side by side with humanity. Rod Serling, whose "Twilight Zone" TV series was always fond of dealing with social causes, saw in this movie a depiction of the racial struggles that were happening in the United States in the 1970's. The series of is both a warning of what could happen, but in the end says that coexistance is possible.