You'd think it wouldn't be surprising that a movie that begins with the words “a long time ago” is in fact about the past, but here we are. By now, it's clear that Disney's Star Wars sequel trilogy (Episodes 7, 8, and 9) is defined primarily by its relationship to the past -- and that Rian Johnson's The Last Jedi is doing its best to upend everything about how this works. The Last Jedi is a Star Wars film, but not how we know it. The key to all of this is history.