First lets discuss what mached, I noticed that in the book and movie relate how julien said aguie looked like darth sideos and he thought he was in a fire at the beginning and him calling august dum and blocking the sience door and august not talking a lot. And Daisy biting august's mom ,and daisy barfing a lot before j she dies and daisy dieing.
Second of all let's discuss what didn’t match,I noticed that in the book and movie don’t relate when julien got expelled not that his parents made him quit school,and in the movie August and Jack didn't know julien got expelled and Julien was not sorry. And they left out the corn maze when they were running away from the 7th grader and at the end of the book for Christmas they got a new dog
Overall I thought the book was better than the movie because the book had more details then the movie, and the book had more pieces of the story then the movie. The movie left out pieces like the corn maze, them geting a new dog and things happened that didn’t happen in the book like augest dad took away the astronaut helmet before he went to school.