See Jake Gyllenhaal’s Shocking Transformation [PHOTOS]
So thin it's scary, but don't fear, Gyllenhaal fans. Jake isn't sick -- he lost the weight for his role in the upcoming 'Nightcrawler' movie. "I think [I've lost] probably a little over 20 pounds, something like that," he told People on the event's red carpet.
Twenty pounds from his already slender frame is dramatic. Take a good look at his "before" picture above, taken last June. Then scroll down to see the new photos ... IF YOU DARE!
Jake ages 20 years in just four months.
This change is nothing to smile about, Jake.
We saved the scariest photo for last.