" Then she adds one word for every note:When you know the notes to sing, you can sing most any thing.Rura Penthe was itself a reference to20,000 Leagues Under the Seaby Jules Verne - the name of the slave labor camp that inspired Captain Nemo""s rage against society and that was the location of his death.With a production budget of $1.8 million (the lowest in the series), and box-office gross receipts of $9 million (domestic).Beneath the Planet of the Apes (1970)d.Ted Post, 95 minutesFilm Plot SummaryThe film opened with the conclusion of the previous film, with a voice-over quotation read by ape/chimpanzee Cornelius (voice of Roddy McDowall), from the 29th scroll, the 6th verse, where it was prophetically written by the Lawgiver and man""s nature:Beware the beast man, for he is the devil""s pawn."During the rainy night as the single-file patrol was deployed, Chris began another voice-over narration of his on-going letter to his grandmother.