Goofs for
Deep Blue Sea (1999)

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• Continuity: When Tom Scoggins is thrown into the generator by the shark, electricity arcs through the water, but Carter Blake and the shark itself are apparently unaffected by this.
  
  
• Revealing mistakes: Just after Jim Whitlock has had his arm bitten off and falls to the ground, you can see his real elbow coming up from his back under his shirt.
  
  
• Continuity: After Preacher is caught by the shark, he uses his cross to poke the eye of the shark; in later scenes, the shark's eye is fine.
  
  

• Factual errors: Carter Blake rubs the body of a shark back and forth with his bare hand(s), as if the surface were smooth (as that of a dolphin). In fact, shark scales are quite rough, and this kind of petting could cause the hand to bleed. At any rate, Carter would not be able to pet the shark with as gentle a motion as he was in the movie.
  
  
• Revealing mistakes: When Preacher, the chef, is climbing up on the shelving in the kitchen to save Bird, you can clearly see the kneepads under his wet pants.
  
  
• Continuity: Near the end of the movie, Carter is swimming back to the wet lab through flooded passageways. At the beginning of the swim, his left shoe is completely untied - you can see both laces floating. In the next full body shot (where his shoes show) the shoe is tied again.
  
  
• Continuity: Carter pries open a door with a knife that is on a sheath on his leg. The knife breaks and he throws it away. In the final scene, when Carter and Preacher are laying on the wreckage, the knife is clearly visibly back in the sheath on Carter's right leg.
  
  
• Factual errors: When they open the door to the shaft when being in the docking area, there is a couple of seconds delay before the water starts rushing into the room. That would have happened instantly. This cannot be explained by some hatch/door/similar collapsing farther up the shaft because this would have caused an immediate and very noticeable rush of air into the shaft.
  
  
• Factual errors: Many times we are shown people able to close doors even though copious amounts of water and air are rushing though them. This is clearly beyond the ability of humans. Their ability to do so cannot be explained by other devices attached to the door because those devices would have prevented them from opening the door in the first place.
  
  
• Revealing mistakes: Numerous scenes reveal sharks as computer animations due to motions that simply are not possible under water.
  
  
• Crew or equipment visible: As the elevator shaft starts to get flooded, Carter and Scoggins stay behind to shut the steel door. Just before they do, the green screen is clearly seen on the other side of the door.
  
  
• Continuity: As Janice and Franklin first talk near the water with the control tower behind, the sky alternates between partially cloudy and clear between shots.
  
  
• Revealing mistakes: In the beginning when the shark is going for the swimmers that fell off the boat, the shark stops moving before he is shot by the shark wrangler.
  
  
• Continuity: When Carter is removing the license plate from the shark's mouth he is wearing fins. As he is helped from the water, he bends down and is wearing a pair of sandals.
  
  
• Continuity: The above water fences were shown to be of the chain-link variety. Which is wire strands bent in a zig-zag pattern and interlinked to form a diamond pattern. However, when it was revealed that the sharks were sinking the facility to escape through the weaker, above water fences, the fence that the shark was tearing apart had a square pattern (resembling the flexible, titanium underwater fence), and the shark was pulling long, straight strands out of the fence.
  
  
• Continuity: In the beginning of the movie with the party on the boat and the Gen 2 shark attacks the boat. On the boat the people are listening to a boombox with a teddy bear on it, as the sharks attacks the boat the boombox falls of the boat and into the water, but for a split second the camera shows the boombox still on the boat in its original place.
  
  
• Revealing mistakes: When Preacher shoots the shark with a harpoon, it goes through the shark's dorsal fin and supposedly impales Carter Black's right thigh. But in the next shot, just before the shark submerges, you can see the strapping arrangement used to fasten the harpoon tip on top of his leg.
  
  
• Continuity: When they are extracting the protein from the shark, the monitor displays real-time MRI imaging showing the insertion of the probe into the shark's brain. This is impossible, since they removed the imaging device before placing the probe jig.
  
  
• Plot holes: It is explained that the sharks are smarter and can now swim backwards. However, sharks are not "too dumb" to swim backwards, they are biologically incapable of doing so.
  
  
• Factual errors: The "tiger shark" near the beginning of the movie is not shaped like a real tiger shark even though the movie shark has similar markings on it's back. A *real* Tiger shark has a blunt rounded nose, and jagged odd shaped teeth. The Tiger sharks in the movie are re-dressed Mako sharks.
  
  
• Continuity: When Preacher is leaving his "legacy", the distance he holds the camera from his face changes between shots.
  
  
• Factual errors: When the door from the sub pen into the elevator shaft is opened, there is a gust of wind into the actors' faces from the shaft into the room. If the sub pen were actually pressurized, the wind would have come from behind the actors and blown into the shaft, as the air pressure in the shaft would have been lower.
  
  
• Factual errors: After Susan electrocutes the shark while in her underwear, she looks at the research data that has been destroyed by the electricity. It has been burned and shows carbon stains as if it had been in a fire. This could not have happened while in water and the data probably would not have been damaged at all from an electric charge in the water.
  
  
• Factual errors: When the researchers are extracting the protein from the shark, the shark's ECG (electrocardiogram) tracing is shown on a vital signs monitor. Not only is the tracing being refreshed right to left, i.e. backwards (which is never done on a real monitor), but the ECG pattern itself is not that of a shark.
  
  
• Continuity: The sharks in the movie are huge but in many scenes are not seen by the characters being attacked in waist deep water.
  
  
• Continuity: When Whitlock is first bitten, his arm is severed at or just below the elbow. In subsequent scenes, the remainder of his arm gets progressively shorter. In the last scene before they exit the elevator, there is only about 6 inches of arm left below the shoulder.
  
  
• Errors made by characters (possibly deliberate errors by the filmmakers): When Jim is thrown against the window/glass and it starts to break, Janice's facial expression changes from blank to crying between shots.
  
  
• Continuity: Before, during the time and after Susan electrocutes the shark, she goes from dry to being covered in sweat from shot to shot.
  
  
• Factual errors: The sharks depicted in this movie are Great Whites, not Makos as several of the characters claim.
  
  

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