7. Using Every Part of the Buffalo
The filmmakers considered every part of Green’s material and used 9 out of the 10 bits. In my opinion, a book adaptation should stay as true to the book as humanly possible, otherwise you should not call an adaptation an “adaptation,” but “a film loosely based on.” Thankfully, director Josh Boone used every part of the buffalo that is The Fault In Our Stars.
Even the scenes that do not make it into the film, are referred to, in one way or another. For example, when Hazel meets Gus for the first time, he mentions she looks like Natalie Portman in “V for Vendetta” and that they should watch the film at his place. In “TFIOS,” Hazel and Gus do go to his house to watch a film, but neither “V for Vendetta” nor Natalie Portman is mentioned. However, later on in the film, we see Gus laying on his bed, talking to Hazel on the phone, and in the background, we see a poster of “V for Vendetta,” referencing to the part of the scene we missed earlier on.