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How Olivia Newton-John almost turned down Grease - until John Travolta told her a surprising secret | The US Sun
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Grease stars' ages in film after Olivia Newton-John almost turned it down for being 29 - Mirror Online
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Olivia Newton-John hadn't wanted to play high schooler Sandy, telling producers: "I'm not American, I can't do an American accent. I'm 29, how can be 18?" Read what changed her mind in
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Knots Landing' star Donna Mills claims Sandy in 'Grease' was modeled after her: 'I found out years later' | Fox News
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