Actor Kate Winslet says tough shoot on "The Mountain Between Us" gave her nightmares.
The 41-year-old actor stars with Idris Elba in the thriller, as survivors of a plane crash left stranded on a remote, snowy mountain.
She says spending long days in icy conditions took a toll on her, reports New York Times magazine.
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"I would have panic dreams about my children being trapped under ice," says Winslet.
"The Mountain Between Us" is not the only movie role to have affected the Oscar-winning star's sleep. She often woke up "in sweats" while shooting Woody Allen's upcoming film "Wonder Wheel".
"It was the most white-knuckle ride I have ever had in my life. I would wake up in the middle of the night, in sweats, about going to work the next day.
"And my hands would hurt - I had been sleeping with a clenched fist and pressing my nail into my fist. Now that is proper anxiety," she says.
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