The Great Gatsby
The message of the book or novel was that the American Dream is not able to be obtain. This of course is someone elses opinion and not the opinion of many. The person named Jay Gatsby had achieved a great deal of wealth and was a well known socialite, but the dream he had was to be with his person of interest of true love named Daisy.
Mary Harriman Rumsey.
The person that owns the mansion of the star of the book is Mary Harriman Rumsey.
The studio that produced the movie was Sony Pictures Entertainment and Warner Bros.
There are about 101 movies about this book. They had about 2 big budget films and four film adaptations. There was a 1974 Film with Robert Redford, and a 2013 movie with Leonardo DiCaprio.
Wikipedia has a lot of information about the book. The author of the book was F. Scott Fitzgerald, that has a cast of followers in a fictional town. This is a novel that a many people enjoy. Sparknotes the The Great Gatsby Study Guide is available. It has summaries and chapter summaries.