Continuity: When Chief Brody and Hooper tie the ropes to the stern cleats, Quint shoots a harpoon under the shark's mouth. When Hooper is in the shark cage, look at the shark's mouth when it passes by. There is no harpoon there.

Audio problem: When Charlie shouts, "Hey! He's takin' it! He's takin' it! He's takin' it!" his lips actually say something else.

Continuity: As the Mayor walks over to the couple on the beach, to persuade them to go into the water, the back of the woman's lounge chair is visible. In the following shot from behind, as they stand up, suddenly a yellow towel is leaning over the back of her chair.

Continuity: As Quint and Hooper drink to their legs, Brody lifts his sweater to see his own scar. Beside the portable stove, to Brody's left, there are four canned goods behind the green canisters of gas. Just after the shark starts to ram into the boat, there is a close-up of the stove, but now there are only two canned goods, a cup appears, and other changes in position, eg the liquor.

Factual error: When the shark is attacking Quint, the boat etc., his eyes do not roll back. Great White sharks roll their eyes back when they attack. Sharks that don't roll their eyes back have protective eyelids, but the shark doesn't close its eyes either.

Continuity: During numerous close-ups on the bridge deck, such as when Brody is behind the wheel, as Hooper shouts, "Our injectors got scored from the salt water in the fuel," the three large gauges over the steering column are seen. The center gauge has a wide shiny chrome trim, and a partial black face with a silver center. However, in the extreme close-up of the gauge panel, it is an entirely different style RPM gauge, and it now has a blackish rusty trim, and a solid black face.

Continuity: After Hooper cuts open the Tiger shark, when he throws a license plate towards the Chief the area to Brody's left is clear, but in the shot facing Brody there are lines and equipment lying on the ground beside him, to his left.

Continuity: The zinc oxide on Brody's nose either appears or disappears between shots. When Brody pulls the wrong line causing the air tanks to roll, he falls back and there's zinc oxide on his nose, yet when he puts another chum marker in the water the zinc oxide is gone. Another example; when Brody says, "I can go slow ahead. Come on down and chum some of this sh*t," in a close-up there is no zinc oxide on his nose, yet when Quint remarks that it's a twenty five footer, suddenly he has zinc oxide on his nose. The amount of zinc oxide also changes between shots, when he wears it.

Continuity: There are long poles and large hooks clipped to both the starboard and port side of Orca. In quite a few shots all three poles are gone from either side, and in other shots the amount of poles and hooks and their positions change repeatedly over and over again, in consecutive shots throughout their hunt!

Continuity: When Quint is shouting 'Stand away from those damn cleets,' he is holding a hand gripper on the orca's mast. Then he's near the controls, which is impossible in a split second: no human can move that fast.

Revealing: The ropes from the two barrels attached to 'Bruce' the shark are tied to the stern cleats, but then Bruce pulls on the ropes and starts to drag the boat sideways and nearly submerges the stern of the boat. As the boat is being pulled sideways by the ropes, they are both shown to have quite a bit of looseness, or slack in them. How can the boat be pulled like that if the ropes are not taut?

Continuity: Near the end, when Quint is struggling to get away from the shark, the nearby cans on the deck change between shots.

Continuity: At Orca's bow, the hole in the steel hull beside its number, is oval shape. However, after Quint is gone, when the ship begins to sink, and later when Hooper surfaces beside the wreckage of the bow, the shape of the hole in the steel hull is completely different! The white water stain lines change throughout the shots as well.

Continuity: After Hooper says, "Oh boys, I think he's come back for his noon feeding," when Quint rushes to the pulpit one of the iron rail bars around the pulpit is bent, but in the following shots it is straight again.

Visible crew/equipment: Just after the two barrels pop up, Hooper comes down from the bridge deck and quips, "Now what?" In the next shot as the two barrels bob up and down, Orca is in the distance with Quint up on the bridge deck and Hooper and Brody on deck at the stern - someone else is moving in the cabin, beside the hanging net.

Revealing: After Hooper delays Quint's shot of the very first harpoon into the shark, he finally shoots and hits the right side of the shark's dorsal fin. Problem is that in this particular shot there is another harpoon already on left side of the shark's dorsal fin!! This is the exact same shot seen later in the film, after Quint shouts, "Run him down Hooper!"

Continuity: When Quint stops cranking to hoist up the cage, in the first shot the large canister is below the deck rail, but in the next shot the canister is well above the rail, right beside Brody.

Continuity: When Hooper and Brody tie off the stern cleats, the amount of line, and the way the lines are wound round the cleats, varies in the following shots.

Continuity: The position of the people while they sit or lie on the beach, before Alex is attacked, changes back and forth between shots throughout this scene.

Continuity: On the dock, Charlie and Denherder wrap a link chain around the corner piling, which is yanked when the shark takes the roast bait. In the close-up the chain is pulled taught from the front and breaks free, but in the next wide shot the chain is slack and being pulled from behind the links around the piling.