History Film / DeepBlueSea

* ArtisticLicenseEngineering: The movie makes a big deal on how a titanium fence can keep a shark away but a steel one won't. In real life, while titanium is more flexible than steel, steel is ''stronger'' than titanium. Steel fences are used in real life to deal with sharks, both metals work if built thick and strong enough.
** However titanium is more resistant to water corrosion, and it has more give, meaning it would wrap around the shark rather than snapping.

-->'''Russel Franklin''': I'm just amazed we've come so far so fast without genetic tampering.
-->'''Janice''': Genetic engineering to increase brain mass is against the Harvard Genetics Compact and Chimera Policy.

* [[{{Leitmotif}} Leitmotif]]: Movie itself has several. Big Shark has one, which usually involves chanting and sounds downright hellish.

* BatmanGambit: [[spoiler:By ''the sharks'', whose pursuit of the humans is actually a ploy to get them to flood the floating station, so it'll sink low enough for the super-makos to escape into the ocean.]]

* DarkestHour: [[spoiler: So, we've slowly whittled the cast down to three people. Susan sacrifices herself to get the shark in range of the HarpoonGun. Carter, who leapt into the water to save her, is now riding on the back of the shark as it swims toward its escape. Preacher takes his shot at the 45 foot shark... and pins Carter to the dorsal fin.]] Lampshaded. [[spoiler: "A 45-foot shark and you hit ''me''? Nice."]]

** The film even ends similarly to ''Film/{{Jaws}}'' with [[spoiler:two guys surviving, with the character who delivers the killing blow initially believing himself to be the SoleSurvivor and being happy to see the other guy surfacing after a shark confrontation.]]

** The sharks are explicitly said to be shortfin makos, but aside from their relatively thin frame and jagged teeth, they look much more like great whites. Granted, this can be handwaved because the Sharks ''are'' genetically engineered.

* ArtisticLicenseEngineering: The movie makes a big deal on how a titanium fence can keep a shark away but a steel one won't. In real life, while titanium is more flexible than steel, steel is ''stronger'' than titanium. Stell fences are used in real life to deal with sharks, both metals work if built thick and strong enough.

* ArtisticLicenseEngineering: The movie makes a big deal on how a titanium fence can keep a shark away but a steel one won't. In real life, while titanium is more flexible than steel, steel is ''stronger'' than titanium.

* ChekhovsGun: Preacher's cross necklace. [[spoiler: He uses it as a weapon to save himself]].

* SortingAlgorithmOfMortality: Repeatedly subverted throughout the movie. The SacrificialLamb teenagers in the opening are saved by Carter before they become shark food, [[spoiler:[[DeadStarWalking the biggest name in the cast]], Samuel L. Jackson, is eaten by a shark [[KilledMidSentence in the middle of a]] RousingSpeech, [[MenAreTheExpendableGender all three female characters, including the female lead, are killed off]], and the [[UncleTomfoolery comedy relief black guy]] is one of the only survivors.]]

** However Titanium is more resistant to water corrosion, and it has more give, meaning it would wrap around the shark rather snapping.

* EyePoke: This is how [[spoiler:Preacher]] survives being grabbed by one of the sharks. The behemoth is dragging him through the water in her huge jaws, and in desperation he grabs [[spoiler:his cross necklace]] and starts to stab her with it. She lets him go when he damages her eye.

* AsTheGoodBookSays: That's why they call him "Preacher".

* DwindlingParty: Obviously. [[spoiler: Brenda is the first to go in a blaze of fire along with the 2 helicopter pilots in the crash, and is quickly followed by Jim who the sharks used as a battering ram to flood the station and left to drown; their early deaths is what doomed many of the others. Franklin is killed quite suddenly while giving a RousingSpeech, making it clear that AnyoneCanDie is in full effect. Janice becomes shark food after the crews escape plan by decompression goes wrong and despite Carter's best efforts couldn't save her. Tom is killed after successfully pulling off a mission along with Carter for the group to escape. Finally Susan is killed in an attempt to lure the last shark back to the station after her escape attempt is foiled.]]

** To ''Film/{{Jaws}}'', of course. It opens with the shark's POV, the scene where Susan confronts a shark in the lab is similar to the one with Brody inside the sinking Orca, and [[spoiler:two of the sharks are blown up (like in the original and [[Film/Jaws3D the 3rd]]) and one is electrocuted (like in ''Film/{{Jaws 2}}''). It's even done in the same order (gas explosion, electrocution, chemical explosives).]]

* FanService: Susan is being stalked through the flooded complex by a shark. She comes up with a plan to electrocute the shark, which requires an insulating sheet, which requires her to strip off her wetsuit. Also, she possess the only wetsuit in the entire film that zips in the front, allowing her to show some cleavage.

* KnightOfCerebus: Big Shark, whose appearance always brings death-and-destruction and is usually accompanied by a terrifying, satanic-sounding [[{{leitmotif}} Leitmotif]] with ominous chanting. Each time she appears except one, someone dies.

* KnightOfCerebus: Big Shark, whose appearance always brings death-and-destruction and is usually accompanied by a terrifying, satanic-sounding leitmotif with ominous chanting. Each time she appears except one, someone dies.

* Leitmotif: Movie itself has several. Big Shark has one, which usually involves chanting and sounds downright hellish.