Continuity mistake: During one scene, in numerous shots Ben pushes the throttle lever all the way up, but in shots between he never actually pulls the lever down.
Continuity mistake: When Ben takes the photograph of the shark tooth to have it analyzed, he hold the tooth as he uses his digital camera. The camera is not connected to his computer, but the picture appears anyway. Also, Ben's fingers are not holding the tooth and the photo doesn't have a background.
Continuity mistake: When the woman is parasailing, then tries grab hold of the researcher's hand, in all the underwater shots the woman is underneath the parachute, and in all the shots above the water she's above it.
Continuity mistake: The request Ben submits to the bulletin board, to identify the shark tooth, is titled "Mystery Shark". Then when Cat finds it, its title is "Mistery Shark", but when she reads it in the close-up, the spelling is correct again.
Continuity mistake: Throughout the film, the megalodon's size changes repeatedly.
Continuity mistake: Outside the Apex building, when the time appears on the screen, the time reads 5:00 AM, but in the next shot the clock above the window reads 10:30.
Continuity mistake: Ben is about to shoot the flare while Cat grabs the aid kit. Half a second later, an aerial shot shows the box floating in the middle of the ocean.
Continuity mistake: When Cat is climbing the rope to get on the helicopter, the close shots show her hair is wet, but in the wide ones, where her face is not seen, her hair is dry and looks like an awful wig.
Continuity mistake: After the boat sinks, the shark opens its mouth to eat two floating men. Their heads have been pasted in the middle of the mouth footage, but their bodies have suddenly disappeared, together with the floating device they held onto. Furthermore, they don't shout, cry, move, or show any reaction whatsoever.
Continuity mistake: The lifeguard runs to the shore telling people to get out of the water, and passes by some people on the beach. There's a two-second-long shot of the swimmers, and suddenly the previous scene is repeated for no reason at all. The lifeguard is away from the shore running towards the water again, and all the people on the beach have vanished.
Continuity mistake: The waitress hands Ben the tray with coffees and withdraws her hands from the counter. Immediately afterward, they're on top of it again.
Continuity mistake: After picking up the lobster, Ben is inside a boat, but disappears from it in the wide angle.
Continuity mistake: After the incident with the seal and the shark, the couple are explaining it all to a cop who writes it down on a notepad. In the close-up it changes to a pink bottle, and in the wider angle back to a notepad.
Continuity mistake: After the mating couple in the sea scene, Ben is watching the dead shark and the couple are in the back with a cop. When the angle changes, the woman is now sitting on the car's hood and a cop has suddenly appeared on the left side.
Continuity mistake: After Ben brings the first aid kit, the size of the sunken ship is very narrow, but from a wide shot it's much wider.
Continuity mistake: Everyone in the Apex yacht falls down when the shark knocks the ship violently, but the fragile tower made of champagne glasses manages to defy the laws of gravity, and it doesn't move an inch amidst the chaos until a waiter stumbles upon it.
Continuity mistake: After a woman falls off the Apex yacht, a man falls down, and when he is about to hit the water a raft suddenly appears.
Continuity mistake: When the parasailing woman is in the water and grabs Cat's hand, from a front angle the parasail is in front of her. From the back shots, it totally disappears.
Continuity mistake: After Ben brings the first aid kit to the sunken ship, Cat's seating position keeps swapping depending on the shot: legs wide spread, or sideways.
Continuity mistake: When Ben and Cat are climbing on the bottom of the sunken ship, the wide angle shows her away from him, already up. In the closer angle they're together and he holds her by the arm.
