EW talked to Shailene about the physical part of her role as Hazel and how much she loves movie:
“I didn’t have to change much in terms of eating or exercise or anything to do Divergent,” Woodley said. “I had to do much more in terms of physical transformation for Hazel in Fault In Our Stars. Especially going from Tris with strong muscles and long hair to Hazel, who is sick and weak and in a very hard and sad situation. …The messages are so important in Fault. I can’t wait for people to see it. I feel so honored to be a small part of that movie. I know that sounds cliché, but it is true. The demographic is unlimited. It has the potential to reach so many people.”
The Wrap talked to John and Nat about the movie and its humor. Nat calls Isaac "the hardest part he's ever done" because of the mix of comedy and dark parts. He also says that the movie is just a great love story and "more honest about teenagers and young people than the majority of movies about young people."
They also joke about John being obsessed with Shailene's and Ansel's kiss and talk about Paper Towns really shortly.
Shine On Media interviewed the cast of TFIOS on the red carpet