This movie is one of the best book to movie adaptations I have seen in quite a while. The did a very good job in recreating the sets in the way that John Steinbeck, as well as the way the characters interact with each other. Almost all of the dialogue was the same as it ended up being the same as it was in the movie. Another thing that they did really well through the adaptation was how to film certain parts of the movie to make it match the amount of drama there was in a certain scene at one time. I also felt that they did a good idea portraying the characters in the ways of casting, attire, and overall personality. Even though the people who created the movie did a very good job in recreating the movie, there were somethings that did end up having to be different.
Some parts of the movie weren't in the book. Things like a scene that shows how strong Lennie was in comparison to the other men really helped develop the characters in a certain way. Another scene like George bringing a mule into the barn and him having a conversation with Curley's wife really helped develop George and Curley's wife as characters. They also took things away from the book that weren't really important to the plot. An example of this was Lennie not telling Crooks about the barn and Crooks actually believing him. There was also some things from the book that they took away that were important, like how George didn't tell Lennie not to talk. The most important thing was that they did George shooting Lennie to quickly. I feel it took the emotion out of the scene that it had in the book. Over all they did a good job adapting the book.