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Freida McFadden doesn't necessarily expect people to read The Housemaid before watching the film, she tells PEOPLE at the movie's New York premiere

"I'm always kind of a 'see the movie, then read the book and get the extra details' kind of person, but sometimes it ruins the book for you," she says

McFadden served as an executive producer on the film alongside leads Sydney Sweeney and Amanda Seyfried

Freida McFadden is weighing in on a longstanding debate: should you read the book before watching the movie?

The author of the bestselling thriller novel The Housemaid spoke with PEOPLE at the New York premiere of the book's film adaptation on Dec. 3. While many authors — and readers — contend the best approach in a book-and-adaptation situation is to read the source ma

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