Imagine if you had to read about the Titanic, instead having the pleasure of watching it. Wouldn't it be boring? That's why movies are preferred over books. Movies have everything. A séance, romance and suspense are all parts of a good movie. Books can only help the reader imagine the plot, but the movie actually takes the reader there. The movie version of The Hound of the Baskervilles starring Basil Rathbone made in 1939 was favored over the 1901-1902 version of The Hounds of the Baskervilles by Sir Arthur Conan Doyle. Although the movie version lacked suspense, it made up by the adding the romance between Sir Henry and Ms. Stapleton, and Mrs. Mortimer's séance. These factors stimulated the plot and made the movie more intriguing. .
The movie was better because it included the séance and romance, which the book didn't have. This helped visualize the attitude of the movie better, even though it was lacking suspense. The scenario with Barrymore snooping around was different in the movie and the book. It's not a significant scene so it doesn't change the plot, but Sir Henry and Ms. Stapleton's love affair does. Sir Henry and Ms. Stapleton's love for another in the movie negates their love for each other in the movie. In the movie, both Sir Henry and Ms. Stapleton love each other. While in the book only Sir Henry has his heart set on Ms. Stapleton. Ms. Stapleton could careless since she was already marries to Mr. Stapleton! This changes the plot of the movie because the viewer can eliminate Ms. Stapleton as being involved in the vicious plan against the Baskervilles. While the reader would have to read on further in the book to unsolve the mystery. The last opposition between the movie and the book is the séance. Mrs. Mortimer performs rituals to awaken Sir Charles, so the cause of his death can be probable. Unfortunately Sir Charles doesn't respond, and the cause of his death is in the mystery it is.