Why watching 'The Walk' can make you actually vomit

The new movie, "The Walk" is so realistic, it's making people sick. The film is the true story of a daredevil's high-wire walk between the World Trade Center's Twin Towers back in 1974.

Joseph Gordon-Levitt plays Philip Petit, the man who made the death-defying walk.  The film was released by TriStar Pictures on September 30, 2015 in the USA in IMAX 3D, and on October 9 in regular 2D and 3D.

Entertainment Weekly journalist Mark Harris reported seeing a man throw up at a pre-release screening.

Dr. Andrea Bubka is an expert on motion sickness, "You have the visual sensation that indicates movement but you are not moving - and that produces sickness. You may feel dizziness, nausea and you may even vomit."

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