Was reminded today of the test footage shot for the 1968 adaptation of Planet of the Apes, and subsequently how having a full scene filmed as a proof of concept almost looks like a glimpse from a familiar film from an ATL. The familiar elements are there, Charlton Heston as an astronaut (Thomas here, not Taylor) who is forced into a crash landing on his mission and finds a planet where primitive humans are treated as animals by civilised apes. The similarities largely end there, as here the ape society is portrayed as being technologically on par with twentieth century humanity - as it was portrayed in the early iterations of the script from which it was adapted, written incidentally by Rod Serling. The ape makeup of John Chambers, of Star Trek and the Iran hostage crisis fame, is here much more simplistic and closer to human appearance. We even get some alternate casting of Edward G. Robinson as Dr. Zaius and then unknowns James Brolin and Linda Harrison as Cornelius and Zira.