re: rewatched the original Vacation last night

quote:

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Had a stroke while filming which is why her character was killed off.

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Don't know about the stroke, but the death of Aunt Edna was in the original story by John Hughes (titled "Vaction '58") as published in National Lampoon a couple of years before the film was made.

And the family in the story went to Disneyland, and it ended with the dad shooting Walt Disney in the leg.