'The Fault in Our Stars' Movie: Shailene Woodley and Ansel Elgort Show Off Adorable Chemistry on Set [PHOTOS]

Fans of John Green's best-selling novel, "The Fault in Our Stars," will be pleased to know that the main leads' are getting perfectly along. In fact, Shailene Woodley and Ansel Elgort, who ironically play siblings in "Divergent," have such adorable chemistry that they've shared quite a few photos online.

John Green received quite the backlash for the casting of "The Fault in Our Stars" early this year. Not everyone was pleased with Shailene Woodley of "The Descendants" and Ansel Elgort of "Divergent" being cast as Hazel Grace Lancaster and Augustus Waters, respectively. Of course, recasting won't be possible, and Green was the first to defend the studios' choices.

"Shailene Woodley is a brilliant actress and Golden Globe nominee," wrote Green on his Tumblr account, adding, "I cannot think of any 18-year-old actress who has received the kind of critical acclaim that she has .... She auditioned for The Fault in Our Stars not because she needs the part (I mean, she's in the new Spider Man movie, for God's sakes) but because she loves the book. Her depth of understanding were immediately obvious in the audition and for me there could be no one else to play Hazel."

The author also had good things to say about Woodley's co-star, Ansel Elgort. "Watching him audition with Shailene, he was just Gus and she was just Hazel. He understood Gus, and clearly had a very deep and thoughtful relationship with the book," stated Green.

"They can play different roles. They'll look different and act different and be different. I mean, no one watched Silver Linings Playbook and thought, 'When did Katniss move to the suburbs of Philadelphia?' If the movie works, you'll sit down in the theater and you won't say, 'Oh look it's Shailene Woodley,' or, 'Oh, look, it's Tris from Divergent.' You'll say, 'Holy wow Hazel Grace,'" continued Green.

Well, Shailene Woodley and Ansel Elgort certainly don't need to convince displeased fans because the photos they shared online proved they're the adorable pair fit to play Hazel and Gus. Check out the slideshow to see more of Shailene Woodley and Ansel Elgort on set for "The Fault in Our Stars."

Surely everything is Okay? Okay.