War for the Planet of the Apes (Matt Reeves, 2017)
The original Planet of the Apes franchise is a good example of the way in which sf film moved from radical to conservative between the late 1960s and late 1970s. Whilst the original Pierre Boulle novel presumably needs to be read in terms of French political history and colonialism, or in terms of class, the films seemed to offer an allegory for America in the civil rights era, with the apes standing in for whites, African Americans and Jews. Certainly we have the spectacle of Charlton Heston, old Moses and Ben Hur, and fellow white astronauts being subjected to the slave experience. As a sequel gave way to prequels, the films seemed to become more anxious about the politics (and there is something frankly racist about the allegory).