@disneyhumor_com: When Mark Hamill learned that Darth Vader was really Luke Skywalker's father, he had the same reaction as millions of Star Wars fans: complete shock. In this Graham Norton Show interview from 2017, Hamill reveals how director Irvin Kershner secretly handed him a piece of paper containing one of cinema's biggest plot twists. For over a year, he had to keep the secret from almost everyone—including co-stars Carrie Fisher and Harrison Ford. Hamill jokes that he couldn't tell Carrie because she would have told everybody, while Harrison couldn't believe he managed to stay quiet for so long. It's a fascinating behind-the-scenes story about the iconic "I am your father" reveal from Star Wars: Episode V – The Empire Strikes Back and a reminder of how different movie spoilers were before social media. Only a handful of people knew the truth before audiences saw it on the big screen. #StarWars #MarkHamill #LukeSkywalker #DarthVader #DisneyHumor