Planet of the Apes takes its main story from the work of science fiction writing by Francophone author Pierre Boulle.
Planet of the Apes (1968 film) . The screenplay by Michael Wilson and Rod Serling was loosely based on the 1963 French novel La Planète des Singes by Pierre Boulle . Planet of the Apes (2001 film) . 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 .