The Crucible (Book and Movie) The key similarity between the Crucible book and the Crucible movie is that they both follow the same storyline with some imponderable differences. For instance, both the book and the movie highlight the drastic change in the beliefs of John Proctor when he gets caught up in the lies of Abigail. It is worth noting that both the movie and the play indicate that John Proctor did not have anything to do with the witch trials of Salem at the start. Additionally, both the movie and the play follow a similar storyline and indicate that Proctor had a relationship with Abigail and believed he had nothing to do with her anymore. A similar storyline adopted by both the Crucible movie and the Crucible book facilitates effective understanding of the intended idea brought about by the book’s author and the playwright. The utilization of a similar storyline also enables readers of the book version to understand the story better when watching the movie, where characters make the story seem more realistic.