Steven Spielberg’s movie “Jaws” hit theaters 50 years ago this month, in June 1975, and became a phenomenon almost instantly. In some ways that was no surprise: The Peter Benchley novel it was based on, also called “Jaws,” had been a huge best seller the year before, and the public was primed for a fun summer scare. Brian Raftery — the author of “Best. Movie. Year. Ever: How 1999 Blew Up the Big Screen” — wrote about “Jaws” for the Book Review last year in honor of the novel’s 50th anniversary, and this week he visits the podcast to talk about the book, the movie adaptation and the era of blockbuster thrillers.

“If you’ve seen ‘Jaws,’ you could probably guess what the opening chapter of the book is,” he tells Gilbert Cruz (who has indeed seen “Jaws,” dozens of times). “It’s this shark attack, where this shark at night just devours this young female swimmer. The writing is really fun. It’s really gnarly, and it’s one of those amazing opening chapters where the book is moving as fast as the shark. After you read that first chapter, you are just completely pulled in.”

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