Question: Planet of the Apes is a 1968 American science fiction film directed by Franklin J. Schaffner, it stars who, he was an American actor and political activist?

Context paragraphs:
Dawn of the Planet of the Apes: Dawn of the Planet of the Apes is a 2014 American science fiction film directed by Matt Reeves and written by Mark Bomback, Rick Jaffa and Amanda Silver.  It stars Andy Serkis, Jason Clarke, Gary Oldman, Keri Russell, Toby Kebbell and Kodi Smit-McPhee.  It is the sequel to the 2011 film "Rise of the Planet of the Apes", which began 20th Century Fox's reboot of the original "Planet of the Apes" series.  "Dawn" is set ten years after the events of "Rise", and follows a group of people in San Francisco who struggle to stay alive in the aftermath of a plague that is wiping out humanity, while Caesar tries to maintain dominance over his community of intelligent apes.

Conquest of the Planet of the Apes: Conquest of the Planet of the Apes is a 1972 science fiction film directed by J. Lee Thompson and written by Paul Dehn.  It is the fourth of five films in the original "Planet of the Apes" series produced by Arthur P. Jacobs.  The film stars Roddy McDowall, Don Murray and Ricardo Montalbán.  It explores how the apes rebelled from humanity's ill treatment following "Escape from the Planet of the Apes" (1971).  It was followed by "Battle for the Planet of the Apes" (1973).

Rise of the Planet of the Apes: Rise of the Planet of the Apes is a 2011 American science fiction film directed by Rupert Wyatt and starring James Franco, Freida Pinto, John Lithgow, Brian Cox, Tom Felton, David Oyelowo, and Andy Serkis.  Written by Rick Jaffa and Amanda Silver, it is 20th Century Fox's reboot of the "Planet of the Apes" series, intended to act as an origin story for a new series of films.  Its premise is similar to the fourth film in the original series, "Conquest of the Planet of the Apes" (1972), but it is not a direct remake of that film.

Charlton Heston: Charlton Heston (born John Charles Carter or Charlton John Carter; October 4, 1923 – April 5, 2008) was an American actor and political activist.

The War Lord: The War Lord is a 1965 American film about Medieval warfare in 11th century Normandy, starring Charlton Heston and directed by Franklin J. Schaffner.  It is an adaptation of the play, "The Lovers", by Leslie Stevens.  The film also features Richard Boone, Rosemary Forsyth, Guy Stockwell, Maurice Evans, Niall MacGinnis, Henry Wilcoxon and James Farentino, with Jon Alderson, Allen Jaffe, Sammy Ross, and Woodrow Parfrey.  Schaffner would later reteam with Heston and Evans in 1968 for "Planet of the Apes".

Planet of the Apes (1968 film): Planet of the Apes is a 1968 American science fiction film directed by Franklin J. Schaffner.  It stars Charlton Heston, Roddy McDowall, Kim Hunter, Maurice Evans, James Whitmore, James Daly and Linda Harrison.  The screenplay by Michael Wilson and Rod Serling was loosely based on the 1963 French novel "La Planète des Singes" by Pierre Boulle.  Jerry Goldsmith composed the groundbreaking avant-garde score.  It was the first in a series of five films made between 1968 and 1973, all produced by Arthur P. Jacobs and released by 20th Century Fox.

War for the Planet of the Apes: War for the Planet of the Apes is a 2017 American science fiction film directed by Matt Reeves and written by Mark Bomback and Reeves.  A sequel to "Rise of the Planet of the Apes" (2011) and "Dawn of the Planet of the Apes" (2014), it is the third installment in the "Planet of the Apes" reboot series.  The film stars Andy Serkis, Woody Harrelson and Steve Zahn, and follows a confrontation between the apes, led by Caesar, and the humans for control of Earth.  Like its predecessor, its premise shares several similarities to the fifth film in the original series, "Battle for the Planet of the Apes", but it is not a direct remake.

Escape from the Planet of the Apes: Escape from the Planet of the Apes is a 1971 science fiction film directed by Don Taylor and written by Paul Dehn.  It stars Roddy McDowall, Kim Hunter, Bradford Dillman and Ricardo Montalbán.  It is the third of five films in the original "Planet of the Apes" series produced by Arthur P. Jacobs, the second being "Beneath the Planet of the Apes" (1970).  Its plot centers on many social issues of the day including scientific experimentation on animals, nuclear war and government intrusion.  The film was well received by critics, getting the best reviews of the four "Planet of the Apes" sequels.  It was followed by "Conquest of the Planet of the Apes".

Planet of the Apes (2001 film): Planet of the Apes is a 2001 American science fiction film directed by Tim Burton and starring Mark Wahlberg, Tim Roth, Helena Bonham Carter, Michael Clarke Duncan, Paul Giamatti, and Estella Warren.  The sixth film produced in the "Planet of the Apes" franchise, it was loosely adapted from Pierre Boulle's 1963 novel of the same name and the 1968 film version.  It tells the story of astronaut Leo Davidson crash-landing on a planet inhabited by intelligent apes.  The apes treat humans as slaves, but with the help of an ape named Ari, Leo starts a rebellion.

Planet of the Apes: Planet of the Apes is an American science fiction media franchise consisting of films, books, television series, comics, and other media about a world in which humans and intelligent apes clash for control.  The series began with French author Pierre Boulle's 1963 novel "La Planète des Singes", translated into English as "Planet of the Apes" or "Monkey Planet".  The 1968 film adaptation, "Planet of the Apes", was a critical and commercial hit, initiating a series of sequels, tie-ins, and derivative works.  Arthur P. Jacobs produced the series under APJAC Productions until his death in 1973; since then 20th Century Fox has owned the franchise.

Supporting paragraphs: Planet of the Apes (1968 film) Charlton Heston
Answer: Charlton Heston