Only Three People Knew About This Iconic ‘Star Wars’ Plot Twist

40 years ago this week, The Empire Strikes Backpremiered with one of the most famous twists in movie history – Darth Vader is Luke Skywalker’s father. And Mark Hammil says only three people knew the secret before the movie was released.

The cast & crew first learned of it when they saw the finished film. When we shot it, Vader's line was "You don't know the truth, Obi-Wan killed your father." Only Irvin Kershner, George Lucas & I knew what would be dubbed in later. Agony keeping that secret for over a year! 😩 https://t.co/DcB2lW8AhC

— Mark Hamill (@MarkHamill) May 24, 2020

Hamill recently mentioned on Twitter that only he, George Lucas, and directer Irvin Kershner knew the infamous “I am your father” line would be dubbed in later. The rest of the cast and crew didn’t find out until after the film premiered.

Hamill says it was “Agony keeping that secret for over a year!”

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Star Wars: The Empire Strikes Back