Continuity: When Mayor Vaughn, Hendricks and the others join Brody on the ferry, as they reach the other side of the harbor the coroner's front leans on the car, as he faces the Mayor and Brody. However, in the next shot the coroner's back now leans on the car, as he faces the opposite way.

Continuity: At the beach party, when Cassidy and Chrissie make eyes at each other, in the close-up he sits behind certain people including a girl with blond braids and guy in a denim shirt, with long sleeves. However, in the next wide shot, denim shirt guy has his sleeves rolled up and many of their positions are different.

Continuity: The chum markers, with the yellow flags, disappear and reappear on deck, in consecutive shots within the same scene. For instance, in the wideshot when Quint, Brody and Hooper are splashed and Quint shouts, "Untie us! He'll pull out the transom!" they are gone, but are back in the next shot of the deck. They keep changing positions as well.

Visible crew/equipment: Hooper and Brody grab a couple of poles as the Orca pulls alongside the two floating barrels. When Quint says, "Watch those barrels, boys. Watch them," the crew's vessel is clearly reflected in the cabin's side glass window.

Visible crew/equipment: Aboard the Orca, Brody accidentally causes the cage bars to fall over, and as both air tanks roll forward the multiple head set lights are reflected on the two tanks.

Continuity: When Hooper asks Quint about being on the Indianapolis, both of his shirt buttons are unfastened. When Quint answers & starts telling the Indianapolis story, Hooper's bottom button is fastened.

Continuity: On the dock, as the Tiger shark is being raised there is an arrow above its gills, a second arrow below its dorsal fin and a broken arrow shaft in the wound just beside that dorsal fin. When Hooper tells the three fishermen that it's a Tiger shark, the broken arrow beside its dorsal fin is now a nice, long, whole arrow. All of the arrows change their degree of penetration in the shark's hide throughout these shots.

Continuity: Quint slams the machete into the wood beside the side cleat, and rigging lines. However, when the shark joins them aboard the boat and Quint is sliding towards its mouth, the machete's position changes - it is farther down towards the stern, note the black anti-slip mats.

Continuity: When the shark is boarding the boat, Quint and Brody are on their backs in the cabin beside the table. It is clearly visible that they are lying on the very solid floor with the hatches in perfect condition, despite the visibly massive damage to the floor and hatch when the engine room exploded.

Continuity: The damage to Orca's stern changes back and forth, between shots. For instance, when the shark first comes aboard the entire transom is torn off, splitting the deck and side rails. Yet, just before the air tank rolls onto Quint's hands, part of the transom is back and the deck rail is whole again.

Continuity: When Brody tries to hail the Coast Guard, Quint smashes the radio and the stove area beside them is visible. When the shark re-appears Quint heads for the stern, and the stove area, which is visible as he walks, is completely different.

Continuity: As Quint lies to Ellen Brody on the radio and yammers that they caught a couple of stripers, the window above the portable stove in the cabin is spotless. However, a moment later when Hooper is on his way to get to the homing device, there is an interior view as he walks along the side of the boat outside. In this shot there are scraped blotchy remnants of a large rectangle sticker on that same window, above the stove.

Continuity: As the tanks of compressed air roll towards Hooper, the large silver cage canisters near the ladder are visible. When Hooper carries a tank to the cabin saying, "You screw around with these tanks and they're gonna blow up," there is a long grey cloth (scarf?) lying on one of the canisters.

Continuity: When Brody and Hooper first arrive at Quint's place, Quint goes to pour the drinks, and beside him are windows with shades. There is a fish that hangs over the window beside Brody and the window upstairs, above Quint, is open. In the following shots positions of the roll shades, towels, etc., differ. Then when Quint climbs the ladder a bunch of rope now hangs beside the mirror, there is a small net that hangs with the fish above the window, and the window upstairs is now closed.

Continuity: When Quint and Hooper show their scars and as Quint talks about the U.S.S. Indianapolis, the leftover food on the plate keeps changing between shots, as does the position of cutlery, etc. Hooper's position on the seat (note the window behind him) changes between shots as well.

Continuity: When Quint stands beside the stove at his place, the stove is positioned a particular way in front of the wall. When he gives Hooper the rope, the stove is farther down against the wall and the wall behind the stove differs (note the panels), as do the roll shades on these windows.

Continuity: After the two barrels are tied off, there is at least twenty feet of line between the barrels and where it disappears into the water. When the next harpoon is shot (the barrel shatters the cabin window) and the shark pulls Orca, that last barrel trails way ahead of Orca, its taught line being extremely shorter than the lines leading to the two other barrels, though the shark pulls them at the same time. However, once the cleats break off, the length of the three lines are identical in length.

Continuity: When Hooper pulls the tooth from the hull of Ben Gardner's boat, he wears his watch and ring on his left wrist and hand. However, in the close-up as he drops the flashlight, knife and tooth, he wears them on his right side.

Continuity: In the famously later on added scene Ben Gardner's suddenly emerging head scares the hell out of Hooper the diver (as well as any viewer). What diminishes the effect is that the second close-up of the head looks nothing like the first, much creepier one.

Continuity: During the scene where Quint, Hooper and Chief Brody are in the cabin at night and Quint tells the story of the USS Indianapolis, he puts his cap on the table, seconds later is disappears then later reappears.