“Jaws” remains one of the most beloved and rewatched movies of all time. But how good is your knowledge of some of lore surrounding Steven Spielberg’s 1975 masterpiece?

Test yourself below and see how much you know about “Jaws.”

What was the nickname given to the shark?

Spielberg named his mechanical shark “Bruce,” after his attorney, Bruce Ramer.

Where did the title come from?

When author Peter Benchley’s 1974 book was going to print, he needed to choose a title. He had juggled various titles — “Leviathan Rising,” “Silent Fall” — before, at the last minute, choosing “Jaws.” What did it mean? Benchley, himself, wasn’t sure, he told his editor, but it was short.

What’s the origin of the movie poster?

The image of the rising shark came from the cover of the novel’s paperback edition, illustrated by Roger Kastel.

What was the inspiration for Amity?

Though “Jaws” was filmed on Martha’s Vineyard, it was the neighboring island, Nantucket, that inspired Benchley’s novel. In the book, the fictional Amity is on the south shore of Long Island.

Who was first attached to direct ‘Jaws’?

Dick Richards was initially in line to direct the film, but producer Richard D. Zanuck said he lost the job after repeatedly referring to the shark as a whale.

Who sought the role of Brody?

Charlton Heston wanted to play the Amity Island police chief, but Spielberg instead cast Roy Scheider.

What led to the shark often malfunctioning?

Salt water. The shark, built by special effects artist Bob Mattey, would get corroded by the salt in the Atlantic Ocean, leaving it unusable for times.

How long into ‘Jaws’ does the shark fully appear?

It’s not until 1 hour and 21 minutes into the movie that we really see the shark.

Was the movie’s most iconic line scripted?

No. Schieder ad-libbed “You’re gonna need a bigger boat.” Screenwriter Carl Gottlieb, though, has said the line had been percolating on set. The size of the barge carrying equipment was often slighted by the crew who felt producers weren’t spending enough. Gottlieb told The Hollywood Reporter in 2016: “It became a catchphrase for any time anything went wrong — if lunch was late or the swells were rocking the camera, someone would say, ‘You’re gonna need a bigger boat.’ ”

Does Spielberg appear in ‘Jaws’?

The director isn’t seen in the film, but his voice is heard. During the finale of the film when Quint is readying the harpoon, it’s Spielberg’s voice on the radio. A clarinetist in high school, he also plays briefly on Williams’ score. And Brody’s dogs were Spielberg’s cocker spaniels, Elmer and Zalman. For his part, Benchley makes a cameo as a TV reporter during the July 4th beach scene.

How far over schedule did ‘Jaws’ run?

The production was scheduled for 55 days but took 159 days to complete. The budget also nearly tripled, to $9 million, plus $3 million more in post-production. Though “Jaws” became the prototype summer movie, it was originally expected to open around Christmastime the year before.

What was ‘Jaws’ rated?

Though it caused some controversy, the Motion Picture Association of America gave “Jaws” a PG rating. At the time, there was no PG-13 rating. Jack Valenti, then-president of the MPAA, defended the rating. “ ‘Jaws’ involved nature’s violence, rather than man’s violence against man,” he said. “… Children might imitate other kinds of violence, but not the kind seen in ‘Jaws.’ ” The movie’s poster carried the warning: “May be too intense for younger children.”

What did ‘Jaws’ lose best picture to at the Academy Awards?

“Jaws” was nominated for four Oscars and won three: best sound, best editing and best score for John Williams. The competition for best picture, though, was fierce. The other nominees were “Dog Day Afternoon,” “Barry Lyndon,” “One Flew Over the Cuckoo’s Nest” and “Nashville.” The winner was “One Flew Over the Cuckoo’s Nest.”