NEW YORK, June 4 (UPI) -- Author John Green has confessed he cried "almost every day" he was on the set of the film adaptation of his cult-classic novel, The Fault in Our Stars.
The book and movie follow teens Gus and Hazel Grace as they fall in love, while battling cancer. Shailene Woodley and Ansel Elgort play the iconic roles in the film, which was written by Scott Neustadter and Michael H. Weber.