Even for the most extraordinary filmmakers, mercenary work is necessary to get your foot in the industry and pay the bills. Script doctoring, uncredited contributions from screenwriters on a film that needs extra polishing, is a fundamental practice in the Hollywood studio system that still goes unnoticed—by design, after all. There are plenty of examples of this over the years, going back to Golden Age Hollywood when renowned novelists were brought in to punch up middling genre pictures. However, the most curious cases of uncredited rewrites come when the text completely differs from the script doctor's tone, such as Quentin Tarantino 's work on It's Pat and M. Night Shyamalan 's work on She's All That .

According to longtime Saturday Night Live cast member Chris K

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