It's called an "adaptation" for a reason. When you bring a book, or a TV show, or a video game, or a comic book to the big-screen from its original source material, you have to make certain choices. Some choices are in service to length, others in service to character, and still others are in service to making the film version as successful as possible. What works in one medium, after all, doesn't always work in another.
In many cases, these adaptations make it through with just a few changes, and the overall spirit of the source material remains intact. In others, you get something that's vastly different, and even unrecognizable, particularly where tone is concerned. But that doesn't always mean the movie is bad. From horror films to sci-fi epics to unexpected comedies, here are 10 movies that took on big tonal shifts from their source material.
