- The basic plot is the same in both the movie and the book. Montresor lures his enemy, Fortunato, to his catacombs, where he walls him up and leaves him to die.
- The characters of Montresor and Fortunato are similar in both the movie and the book. Montresor is a wealthy, aristocratic man who is consumed by his hatred for Fortunato. Fortunato is a carefree, drunkard who is easily fooled by Montresor.
- The setting of the movie and the book is the same. The story takes place in the catacombs of Montresor's palace in Italy.
- The themes of the movie and the book are similar. The themes of revenge, hatred, and betrayal are all explored in both the movie and the book.
- The movie adaptation of "The Cask of Amontillado" takes place in the 19th century, while the book is set in the 16th century.
- The movie version of the story is told from the perspective of Montresor, while the book is told from the perspective of an unnamed narrator.
- The movie adaptation includes a number of scenes that are not in the book, such as the scene where Montresor and Fortunato meet at a carnival.
- The ending of the movie is different from the ending of the book. In the movie, Montresor kills Fortunato by stabbing him with a knife. In the book, Montresor leaves Fortunato to die in the catacombs.