In a recent interview, Star Wars composer John Williams explained why he wrongly wroote a love theme for siblings Luke Skywalker and Princess Leia. While the twist that Luke and Leia are actually twins is well-known now, when it was revealed in Return of the Jedi, it came as quite a shock. This was not only surprising because it was a plot twist, though; the original Star Wars trilogy had long been building up the narrative that Luke and Leia were potential love interests, culminating in the Luke-Leia kiss in The Empire Strikes Back.
