Star Wars Cast Didn't Know About 'I Am Your Father' Scene Until Movie Was Out

Mark Hamill said it was "agony" to keep that plot twist a secret from his costars for over a year

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Father' twist in 'Star Wars' was so secretive, cast didn't know until movie came out

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Things Only True Fans Noticed About Star Wars' Iconic 'I Am Your Father' Scene

We take a look at 21 things you might not know about the Star Wars film franchise

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