There are several ways in which the movie by Baz Luhrmann differs from the classic novel. The story portrayed in the film departs from the original text in different scenes. For instance, they are at the very beginning and during the apartment party. Nevertheless, the movie production team did a great job of depicting the classic story.
Detailed answer:
A detailed breakdown of the main differences between the book and the movie includes a few parts. The idea that The Great Gatsby is entirely written by the narrator is not accurate for the movie. Fitzgerald makes it apparent that Nick is telling a story about Gatsby. But this fact is not that obvious for the film viewer. However, Luhrmann still portrays Nick, who is writing, typing, and organizing the manuscript.
Even though the film follows the novel’s plot, the screenwriters end up cutting out some side stories. For example, the affair between Nick and Jordan Barker does not appear in the film. The readers learn that these two become a couple and break up later. But the movie viewers are not exposed to this part of the story at all.
Then, the book does not depict the murder of Jay Gatsby in detail. So the movie director decided to add some drama and describe it precisely. The movie portrays Gatsby dying with the thought that Daisy plans to leave Tom in order to be with him. However, this does not happen in the book.