The Empire Strikes Back ★★★★½

5th movie in my Star Wars rewatch marathon.
This one is right up there with the last one. It’s a bit darker than the first film, but for the story it’s telling it makes perfect sense. The only qualms I have with this movie is that the whole side adventure with Han, Leia, Chewie and 3PO feels like filler; not a whole lot happens there. And I guess also that scene where Luke goes into the dark side swamp cave. I mean can anyone tell me exactly what that scene is supposed to mean?