In 1978, David Prowse – the actor who wore the Darth Vader suit in the original Star Wars Trilogy – did a personal appearance in Berkeley, California which was covered by a local newspaper. At the event, Prowse answered questions about “Star Wars II” and “Star Wars III” and also just happened to mention the greatest spoiler in movie history – that Darth Vader was Luke Skywalker’s father. In 1978. Two years before The Empire Strikes Back was released.
via SlashFilm
Who knows if he really knew Lucas’ plan for the film, but what we do know is, a secret like this could never be kept now.
