Planet of the Apes (1968 film) was well received by critics and audiences, launching a film franchise, including four sequels, as well as a short-lived television show, animated series, comic books, and various merchandising. In particular, Roddy McDowall had a long-running relationship with the "Apes" series, appearing in four of the original five films (absent, apart from a brief voiceover, from the second film of the series, "Beneath the Planet of the Apes", in which he was replaced by David Watson in the role of Cornelius), and also in the television series. The original series was followed by Tim Burton's remake "Planet of the Apes" in
Planet of the Apes Méndez. The film opened on May 26, 1970. Unlike its predecessor, "Beneath" was poorly reviewed; critics typically regard it as the worst of the "Apes" sequels other than the last, "Battle for the Planet of the Apes". Nonetheless, it was a major box office hit, nearing the original's numbers. Despite a conclusion depicting the planet's nuclear destruction, Fox requested another sequel, creating a series. Following the financial success of "Beneath", Arthur P. Jacobs recruited Paul Dehn to write a new script with a brief telegram: "Apes exist, Sequel required." Dehn immediately started work on what became "Escape from the Planet