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Jake Gyllenhaal on His Extreme Weight Loss Transformation for 'Nightcrawler'

"Extra" special correspondent Rob Estes recently sat down with actor Jake Gyllenhaal to talk about his massive weight loss and physical transformation for his upcoming thriller, "Nightcrawler."

In the film, Jake plays a crime journalist obsessed with getting footage of accidents, murder and mayhem to sell to a local news station. As Jake's character searches for more crimes to film, he begins to unravel a mystery.

Check out our interview with Jake!

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