"I feel like Shailene is the best actress I've ever met, who was good enough to read with, and I feel like I'm a pretty good actor too, so I think it's going to be no problem for us. It'll be great. Acting is acting. We have chemistry as brother and sister, but we're both good enough to have chemistry as lovers as well." - Ansel Elgort on having parts with Shailene in both Divergent & The Fault in Our Stars.