1 / 11
We all know that Harry Potter, Twilight, and 50 Shades of Grey were all based on novels. In this gallery, we're going to show you some of the Hollywood blockbusters you didn't know were based on books. Let's begin!
2 / 11
You'd think that the script for Jurassic Park would have come straight from a Hollywood screenwriter. Well, this is not the case. The movie was actually based on Michael Crichton's best-selling novel of the same name.
Countless Hollywood hits were produced from the mind of real-life doctor Michael Crichton like ER, Westworld, Sphere, The Great Train Robbery, Timeline, Congo, Twister, and Disclosure!
3 / 11
The Blockbuster I Know What You Did Last Summer came to the big screen in 1997. The novel had already been internationally sold on bookshelves around the world in 1973.
4 / 11
Most people associate the horror classic Psycho with Alfred Hitchcock. That is correct since he was the director of the masterpiece! But the screenplay (penned by Joseph Stefano) was largely base on the novel of the same name by Robert Bloch.
5 / 11
The script for Breakfast at Tiffany's was based on a novella written by Truman Capote and the film was directed by Blake Edwards. In the original novelization, the end of "Holly Golightly's" story is much sadder in contrast to the film.
6 / 11
The movie Stand By Me is based on the Stephen King short story "The Body". This story is part of a collection of short stories under the name Different Seasons.
7 / 11
This horror movie classic is also a very popular book! The actual book Rosemary's Baby was written by Ira Levin. The next movie on our list is also based on another one of her novels...
8 / 11
Ira Levin also wrote The Stepford Wives. The book was adapted for the big screen twice— the first time was in 1975 and the second time was in 2004, featuring Nicole Kidman.
9 / 11
Unbelievable, yet very true! Our favorite ogre was not created by the folks over at DreamWorks Animation. The cult classic Shrek is based on the children's book with the same name written by William Steig.
10 / 11
The movie Sleeping with the Enemy, starring Julia Roberts and Patrick Bergin, is not for the faint-hearted. Nancy Price wrote the original book that the movie is loosely based on.