Hazel and Gus are two extraordinary teenagers who share an acerbic  wit, a disdain for the conventional, and a love that sweeps them - and  us – on an unforgettable journey. Their relationship is all the more  miraculous, given that they met and fell in love at a cancer support  group. The Fault In Our Stars, based upon the number-one bestselling  novel by John Green, explores the funny, thrilling and tragic business  of being alive and in love. 
 Hazel Grace Lancaster (Shailene  Woodley) is sixteen years old. She alternately loves and tolerates her  sometimes over-doting parents. Hazel has developed a crush on a young  man, Gus Waters (Ansel Elgort), who seems equally smitten with her. As  they grow closer, Hazel and Gus share their fears that accompany their  health issues, as well as their love of books, including Hazel's  touchstone, An Imperial Affliction. She has tried many times to get in  touch with the book's reclusive author Peter Van Houten (Willem Dafoe),  to no avail. When Gus manages to reach Van Houten through the author's  assistant, it results, astonishingly, in an invitation to meet the  writer in Amsterdam. Gus is determined to take Hazel on a journey that  will answer every question she has ever had about the book that has  meant so much to her.  But the answers she is looking for do not come  from Peter Van Houten. They come from living a great adventure that  Hazel shares with someone she is not afraid to    love – who has given  them both what she calls a 'little infinity – a forever within the  numbered days." 
 John Green's novel The Fault in Our Stars was  published January 10, 2012 and debuted at number-one on The New York  Times Best Sellers list. John Green began work on The Fault in Our Stars  in 2000 after serving as a student chaplain in a children's hospital,  and explains: 'I wanted to write a story about young people who were  like many of those I had met in the hospital – who were funny, full of  life and great fun to be around. 
 'I also knew that I wanted The  Fault in Our Stars to be a love story, but it wasn't clear to me for a  long time what kind of love story it would be," he continues. 'Finally  after many years of looking for my characters, I found Hazel and Gus.  They have very different ideas about what constitutes a well-lived life,  as well as constrasting world views, but they are brought together by  their love for each other and for a book." 
 John Green's  friendship with a young woman named Esther Earl, to whom he dedicated  The Fault in Our Stars, provided the direction he needed to tell the  story. Though Esther Earl is not the model for a specific character in  the book, John Green notes that, 'our friendship and the joy she had in  her life were huge inspirations." Diagnosed with metastasized papillary  thyroid cancer in 2006, Esther Grace Earl succumbed to the disease in  2010, at age 16. 
 Even before the novel was published, Hollywood  came calling. But John Green was reluctant to sell the movie rights. 'I  felt the story was so personal and close to me I just couldn't imagine  it being turned into a movie." 
 Producer Wyck Godfrey was aware  of the author's reluctance. Having just produced the phenomenally  successful Twilight series, based on the books by Stephenie Meyer, Wyck  Godfrey and Marty Bowen, his partner at Temple Hill Entertainment, had  become adept at recognising literature that was ideal for screen  adaptation. 'We had been trying to find something that would speak to  the next wave of young readers who were looking for something that was  very real, and The Fault in Our Stars felt like the next step for young  adult fiction."  

Wyck  Godfrey approached Fox 2000 Pictures president Elizabeth Gabler, and  together they moved quickly to secure the movie rights. 'We got on the  phone with John and   convinced him we were the right people to turn the  book into a film," Wyck Godfrey recalls. Their mutual love of football  (soccer) helped seal the deal. 'I admitted to being a huge Liverpool  fan, and as luck would have it, so was John Green," adds the producer. 
 Bonding over sports, aside, John Green says that meeting Wyck Godfrey  and the film's executive producer (and Temple Hill Entertainment  executive) Isaac Klausner, and hearing firsthand of the two filmmakers'  commitment to be faithful to the book's themes and characters, convinced  the author that they were the right people to bring the story to the  big screen. 
 'One of the things Wyck Godfrey said to me during  those meetings was, -You didn't write a cancer book, and we're not going  to make a cancer movie,'" John Green remembers. 'Wyck Godfrey didn't  want the film to be sentimental or about learning to be grateful for  every day. Wyck Godfrey wanted the film to be raw, exciting and a  celebration of life. And that's exactly what I was looking for. 
 'I wanted the movie to be fun and something from which people would  walk away feeling uplifted – that would capture the idea that a short  life can be a good and rich one. Wyck Godfrey and Isaac Klausner really  believed those things, too." 
 Two of the book's legions of fans –  screenwriters Scott Neustadter and Michael H. Weber – were pleased to  come aboard and adapt John Green's novel. 'The truth is we were  fortunate to become involved with the project before the book became a  worldwide sensation," Scott Neustadter explains. 'At the time we read  it, right before its publication, it was beloved…by us. The reaction to  the book since then is fantastic – we hope the movie is embraced in the  same way – but it was not an issue when we were adapting, beyond our  strong feelings for it." 
 'Our goal was to preserve as much of  the book as possible while making sure it's a special cinematic  experience," adds Michael Weber. 'As with most books, the biggest  challenge in that process is externalizing the internal voice of the  book. John Green read our first draft and sent us the most wonderful  email of support. When we work with an author of his caliber it means a  lot to us that they approve of our adaptation." 
 The decision to  have Josh Boone direct was an easy one. Wyck Godfrey was a fan of Josh  Boone's film Stuck in Love and had been tracking it since he had read  the script. The film starred Greg Kinnear, Jennifer Connolly and Lily  Collins, but as Wyck Godfrey says, 'It's  ultimately about the character  of the teenage son," played by Nat Wolff, who has a leading role in The  Fault In Our Stars. 
 'It's sort of autobiographical and you  watch this kid come of age in a way that is funny, emotional and yet  never pandering," Wyck Godfrey explains. 'It felt very real." 
 Josh Boone's take on The Fault In Our Stars was certainly ambitious. His  pitch to the studio and producers: 'This story is -Titanic' and cancer  is the iceberg we're going to hit eventually. But the film cannot be  about the iceberg; it has to be about the love story. It had to have  real and special moments." 
 John Green was a regular presence on  the set, and according to Josh Boone, the author's input was  invaluable. 'John Green was terrific in helping us determine whether  something was working," says the director. 'He's not only a wonderful  writer, he's a great audience." 
 Shailene Woodley takes on the  role of Hazel Grace Lancaster. The young star of Divergent and The  Descendants says The Fault In Our Stars will forever leave a lasting  impression on her. 'It was truly one of the biggest honors of my life to  be a part of this project. Both the film and novel explore the most  powerful and universal themes. The story taught me that all is fleeting,  that nothing is guaranteed, and that however long or short a life you  live, it is the small moments that mean the most. 
 'I wanted the  role so badly I sent John Green a long, long email about how much I  loved the book, and how I had to play Hazel," Shailene Woodley  continues. 'So I sat down with the studio executives and producers and  said, -I'll be a P.A. or an extra, just please, please let me be a part  of it!'" 
 Fortunately – for Shailene Woodley and the filmmakers –  she was able to keep her day job, largely, says Josh Boone, thanks to  her spectacular audition. 'We read close to 150 actresses for the role,  and I saw about 50 of those. Within ten or fifteen seconds of Shailene  Woodley's audition, I knew she was Hazel. She held up her script pages  and just her eyes were peeking over them. Shailene Woodley has these  incredible, expressive green eyes, and she could do so much with them.  She was emotionally available and creates such nuanced and subtle work. I  don't know how she does it; it's like some kind of magic." 
 Shailene Woodley's views on the story, themes and characters mirrored  those of her director and the producers. 'The Fault In Our Stars is a  love story about two kids with cancer, but it's not about cancer," she  explains. 'I was so deeply moved by Hazel and Gus, who are able to see  things that a lot of us are too busy living our lives to see." 
 Shailene Woodley worked hard to capture Hazel's many shadings and  complexities. 'Shailene Woodley understands Hazel so deeply," says John  Green. 'She gives a raw, honest and totally unselfconscious performance.  I'm so grateful for what she's done with the character. 
 'Hazel  is a pretty sarcastic person with a gallows sense of humour," the  author continues. 'But she's always very loving and deeply concerned  about the effect her illness has on the people around her, particularly  on Hazel's parents. She doesn't want to be what Hazel calls a -grenade' –  whose death causes pain and destruction. I mean, she's a vegetarian who  says to Gus, -I want to minimise the casualties.' She possesses an  under-appreciated kind of heroism." 
 In addition to capturing  Hazel's many qualities, Shailene Woodley was tasked with conveying her  physical limitations, chief of which is her need to be hooked up to a  cannula – a flexible tube attached to an oxygen tank. Here, again,  Shailene Woodley's research was important. 'I met with a lot of people  who had been on oxygen, one of whom said it was like breathing through a  straw,'" she comments.  The object of Hazel's affections, Gus, played  by Ansel Elgort, is someone who believes in big, heroic gestures. He's  brash and tough, but also possesses an appealing intelligence. 
 According to John Green, Hazel and Gus' attraction to one another stems  from the fact they possess a similar wit and intelligence. 'There's a  line in the Philip Roth novel The Human Stain, where a character says,  -The pleasure isn't in owning the person. The pleasure is this. Having  another contender in the room with you.' I think Hazel is someone who  doesn't have a lot of contenders in the room with her, and when she  meets Gus she realises, -Oh, this guy can hang with me.' For Gus it's  the same thing. He's used to being able to attract women, but he's never  encountered someone like Hazel before." 
 Gus is a complicated  figure: he's a former high school basketball star, and his favorite book  – until meeting Hazel – is based on a videogame. At the same time, he's  an intellectual who enjoys giving long, thoughtful monologues. 

 Ansel Elgort already had a connection with Shailene Woodley, with whom  he stars – as her brother – in Divergent. Shailene Woodley notes that  this previous onscreen pairing was 'a blessing for our work together in  The Fault In Our Stars because we already knew each other and had this  on-screen chemistry, so it was easy to connect as Hazel and Gus. Ansel  Elgort's like my brother; he's so curious about the world and everything  excites him." 
 'With love stories it's all about chemistry,"  adds Wyck Godfrey. 'Shailene Woodley dominated many of the actors we had  tested with her, because she has that kind of intimidating strength of  character. But then Ansel came in and he had this charisma, exuberance  and energy that put Shailene Wooldey back on her feet a little bit,  which is exactly what you want her to feel." 
 For Ansel Elgort,  Gus was exactly the part he was looking for. Like so many others, he was  a fan of the novel. 'Above all, the book is full of beautiful ideas  that make you think about life and love," he notes. 
 Tackling  his most challenging role yet, Ansel Elgort credits Shailene Woodley as a  source of strength. 'I've had some moments in this film that have been  harder for me than any in my career, so having Shailene Woodly by my  side made it a lot easier." 
 Gus' best friend is Isaac, who like  Gus and Hazel is being treated for cancer but refuses to let it get the  better of him. But unlike Gus and Hazel, Isaac's love life has taken a  turn for the worse. Nat Wolff, who plays Isaac, explains: 'Isaac is a  normal guy who is going through a tough situation with his cancer, which  has taken one of his eyes and is about to take the other. But Isaac  gives the impression that his most pressing issue is his hot girlfriend  who's just dumped him.  'Isaac spends much of the story reeling from the  breakup, when in reality, you know he's upset about losing his eyesight  and is dealing with it by thinking about the girl who jilted him."  To  research the role, Nat Wolff spent time talking to cancer patients, one  of whom was going through a situation not unlike Isaac's. 'I met a guy  named Ethan, who had   gone blind at eighteen and whose girlfriend had  broken up with him around the same time," says Nat Wolff. 'He didn't  really blame the girl; he just thought it's really hard for anybody to  understand what a cancer patient is going through. It was hard for her  and some of his other friends to reach out." 
 Apart from Hazel's  friendship with Gus and Isaac, her world is very small. Due to the  restrictions placed upon her by her illness, Hazel spends much of her  time with her parents, Frannie, played by Laura Dern, and Michael,  played by Sam Trammell. 
 'Frannie and Michael are good parents  who love their daughter and take really good care of her," says John  Green. 'But they are facing the reality of her illness. At times it  makes them a little bit like -helicopter' parents, who hover over their  daughter. 
 'At the same time, Hazel's illness allows Frannie and  Michael to be freer with Hazel than most parents would be with their  teenage daughters," he continues. 'They don't worry as much about some  of the relatively minor things that other parents worry about, like the  guys their daughters are dating, because there are bigger concerns in  their lives. So that makes for an interesting dynamic between Hazel and  her parents." 
 Laura Dern felt a strong connection with her  on-screen daughter. 'When I met Shailene Woodley it was like being with  family, which is rare." Laura Dern says. 'Something in John Green's  writing and in Shailene Woodley's personality made us kindred spirits.  Like Hazel and Frannie, Shailene and I are a bit obsessive about eating  the healthiest ways possible and making sure there are no environmental  toxins around us. That infuses our characters and our friendship." 
 Sam Trammell also appreciated the connections between the parents and  their daughter. 'Hazel is almost as much of a caretaker to her parents  as they are to her," he says. 'One of the things that struck me about  the story was how Hazel is primarily concerned about the people she'll  be leaving when she passes, especially her parents. The most troubling  thing to her is how her illness affects others, and I think that's a  beautiful notion." 
 Oscar®-nominated actor Willem Dafoe takes on  the pivotal role of enigmatic author Peter Van Houten, whose book An  Imperial Affliction is a touchstone for Hazel and Gus. Wyck Godfrey  describes the role as the story's 'Wizard of Oz," because 'Hazel and Gus  are going on this journey to meet the wizard, and when that door opens,  it's got to be   someone who's scary, broken, intimidating, and yet  ultimately engrossing and charming in his own way. We're so fortunate  that Willem Dafoe turns Van Houten into a really powerful character."   John Green agrees, noting that 'Willem Dafoe has been in many of my  favorite movies in the last 25 years, but I've never seen him as anyone  like Van Houten. It was like experiencing Peter Van Houten come to life,  which is both a terrifying and wonderful thing." 
 Willem Dafoe says he was drawn to the book's and the script's skillful blend of comedy and drama, 'which i

s  a very difficult balancing act. It's moving and realistic, and  skillfully avoids being maudlin and overly sentimental." He describes  Van Houten as 'an author who's written a book Hazel and Gus are obsessed  with. He's a recluse who has moved to Amsterdam, and he hasn't written  another book since. An Imperial Affliction has been widely successful,  and Van Houten has a huge group of followers, but he's very cut off from  that. You later discover that this book that he wrote was very  personal, and you understand why he's not the nicest person in the  world." 
 For all the characters, it was paramount that every  aspect of their lives felt authentic. Wyck Godfrey notes that, 'John  Green said the reason he loves writing about teenagers is that they are  not yet that cynical. In some ways they live very openly, haven't yet  been become jaded, and it's a beautiful time for them. Teens are  impulsive and will say and do anything. One of the most fascinating  things about Gus, Hazel and Isaac is that their illnesses don't change  that." 
 The filmmakers' insistence on verisimilitude led them to  visit cancer support groups. 'When Josh Boone and I got together with  the actors, the first thing we said is that we must represent this  experience and situation in an honest way," Wyck Godfrey explains. 'The  only way to do that was to spend time with young people who are patients  and meet with the doctors treating them, as well as with the parents  going through it all with them. When we got to our shooting locations in  Pittsburgh, we reached out to the hospitals and the cancer centers and  asked for their help with this." 
 The production made contact  with several patients either going through treatment or in remission,  many of whom became a valuable part of the production, appearing in  scenes set at the story's cancer support group. 'These young people have  been so  important to the movie not only because they lent their  talents on screen but because it's given all of us an opportunity to  talk about their experiences," says John Green. 'What we found is that  what started off as research questions, like, -Tell me what it's like …"  ended up with us talking about movies, cars, girls and whatever else.  It was a joy just getting to hang out with them." 
 Prior to and  during production, John Green's book was a touchstone for everyone  connected with The Fault In Our Stars. 'My favorite thing about the  book," Wyck Godfrey says, 'is when you put it down you feel like, -Every  one of us should attack life with the energy that Hazel and Gus do.' At  their core, Hazel, Gus and Isaac are experiencing many of the same  things that teenagers have gone through for generations."  
Adds  Shailene Woodley: 'It is an honour to have brought to the big screen one  of the most powerful fictional characters I've ever met. The Fault In  Our Stars rewrote the way I look at each breath."