The novel and the movie have some similarities. For example, they have the same characters, Ponyboy, Sodapop, and Darry are brothers, and the Greasers, and the Socs, a.k.a the Socials. Johnny stabbed a Soc to save Ponyboy, which made them fugitives and forces them into hiding.
Although they have much in common, but not all movies are the same as the book. One major difference was that Pony starts the movie by writing. In the novel,