It was inevitable there would be many 50th anniversary celebrations of Steven Spielberg’s monster hit “Jaws.”

But the one documentary that has Spielberg on camera is National Geographic’s “JAWS@50: The Definitive Inside Story” which streams Friday on Hulu and Disney+.

“There have been so many documentaries, books and all, there was a sense we really needed to reinvent the story a bit,” director Laurent Bouzereau said in a Zoom interview. “I decided to focus on the human experience that was the making of ‘Jaws.’ “

The human factor we readily see is what makes “Jaws” so special — what makes “Jaws” “Jaws” if you will.

Who knew only eight roles were played by professional actors? All the others were locals recruited for the filming.

“I was surprised,” Bouzereau allowed, adding that when he came to Martha’s Vineyard, the island headquarters for the production, “the impact that the film had on that community and continues to have is almost surreal.

“They still talk about it — grandparents, their children and their grandchildren. They’re all influenced by it in a way that’s extremely moving and at the same time, kind of arresting. Because you feel that ‘Jaws’ in a way belongs to them. It was a really inspired thing.”

Because “Jaws” was the first major Hollywood production to actually film on water, those locals were essential to its authenticity.

“Had the movie been made by Alfred Hitchcock 10 years earlier,” Bouzereau reckoned, “it would have just been another movie that would be made on the backlot, with rear-view projection and a studio sensibility.

“But of course Steven wanted to do a Hitchcock movie — but actually be on the beach or in the water. Hitchcock would have never been caught dead on the beach.”

For Spielberg, “Jaws” became a trial by fire. As the budget added another million and filming relentlessly continued, those problems became national news.

Rumors spread that Spielberg was going to be fired, replaced.

We do see in the doc’s most surprising and shocking revelation, Spielberg talk about the PTSD he suffered, months after the film achieved blockbuster status.

He talks about waking in the middle of the night, shaking and crying. He’s haunted.

“I have to say that even though I’ve known Steven over 30 years,” Bouzereau said, “I completely underestimated that aspect. Because we take it for granted, the film is a huge success. What do you have to cry about?

“For Steven to talk about that experience I thought was very courageous. That really reminded me of his humanity and his vulnerability in telling the story of the making of ‘Jaws.’ ”

As Spielberg himself sums it up, “This is the movie I thought would end my career, and instead it gave me my career.”

“JAWS@50: The Definitive Inside Story” streams Friday on Hulu and Disney+