18 Famous Movies You Didn't Know Were Based On Books

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Everyone knows that iconic films like The Shining and A Clockwork Orange were based on novels, but there are plenty of movies that you might not know the origins of. Tons of films are adapted from works of literature, though not every movie wears its source on its sleeve. Some films are adapted from novels that didn't quite make it into our cultural conscious the way that, say, 50 Shades of Grey or Gone Girl did, and some diverged so far from the original text that it's hard to remember the movie is based on anything at all. So what surprising movies were really based on books? Click through to find out.

Image: Columbia Pictures

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