One of the criticisms lobbed against The Force Awakens was that it was derivative of the original Star Wars trilogy, repeating many of the plot points and character types from the first film and some of the second. I still enjoyed it because it remixed those elements enough that it felt fresh, and because it was fun to experience a competently written and directed Star Wars film again after the letdown of the prequels. But one of my questions surrounding The Last Jedi concerned whether it too would be a derivative remixing of the original trilogy, or whether it would take Star Wars in new and interesting directions. The answer seems to be both yes and no.
Like The Force Awakens, The Last Jedi repeats many elements from the original trilogy, particularly The Empire Strikes Back and Return of the Jedi. The film begins like Empire, with the villains catching the heroes in the middle of an escape attempt; also like Empire, a pupil seeks out training from a Jedi master, has a reflective experience in an enclosure laden with the dark side of the force, and abandons their training to confront a villain. Like both Empire and Return of the Jedi, villains and heroes attempt to turn one another to their causes, and a villain is betrayed by his apprentice, among many other similarities.
Yet even more than The Force Awakens, The Last Jedi spins this material in new directions, remixing it until it resembles the original trilogy only in passing. The rebels' escape attempt, for instance, is drawn out into an ancillary plot that lasts the length of the film, and the equivalent of the battle for Hoth is moved from the beginning of the film to the end. More than this, however, The Last Jedi goes far beyond The Force Awakens in introducing new and exciting narrative elements. The result is a film that most certainly feels like Star Wars, but one that also revitalizes the series, yielding a largely stellar -- although not unflawed -- entry in the saga.