Deep Blue Sea

Typical teens have a party in the boat in the middle of the ocean at night.
Smart teens.

Whoops! They know over a bottle of RED wine in to the water. Oh, I get it, so it looks like blood, very clever scriptwriters. Even though Sharks use their sense of smell not their sight as their sight is pretty SHIT.

The shark however, decides to ignore this part of his biology and goes for the teens. Thomas Jane rescues them all by appearing out of nowhere.
Audience ‘how did..?
NEXT SCENE!
Saffron Burrows arrives in New York and talks Hollywood Science to Samuel L Jackson. The cure of Alzheimer’s was apparently in Shark’s brains all along!

She somehow convinces him to go to the SCIENCE station in the middle of the ocean. Don’t worry, its perfectly safe!

Aquatic station: Halfhearted attempts of character development are made.
This is quickly abandoned and a Shark is brought in for a science test.
They suck a bit of the brain out. Everyone cheers! Everything is going to be OK!
Shark, hearing all the celebrations, decides to ruin it and bites Stellan’s arm off.

Stellan hobbles about with his arm behind his back. He is put in a stretcher and airlifted into a helicopter. Slowly. Just at this moment, the most horrendous storm hits the scene! Damn you nature and your never failing ability to be inconvenient in Hollywood Blockbusters!

Shark leaps up and grabs Stellan and drags him under water. This then drags the helicopter into the station, which marjory EXPLODES EVERYTHING – YEEEAAAHHHH. The scene is essentially bayified.

At this point, the survivors are looking at Saffron for some answers.
Saffron ‘ as a result of the unspecified, undiscussed and unexplained SCIENCE experiment, the sharks got smarter as a side effect!’
To illustrate the point, a shark swims BACKWARDS in front of them all.
Very clever writers. Except of course, sharks do not swim backwards because they are too dumb and it just never occurred to them to swim backwards. Their biology does not ALLOW them too.

To really show what a mean spirited, malicious and clever the shark really is, he throws Stellan’s corpse into the glass – which FLOODS THE ENTIRE VACINITY.
Luckily, three men easily manage to shut and lock the door again the entire ocean flooding in. They are safe. For now!

Obligatory arguing amongst themselves scene takes place, giving the audience a chance to easily work out who will die and in what order. I.e. Wimpish girl, evil girl who love Alzheimer’s and jock cocky guy who panics under a crisis. But not Samuel L Jackson though, just let him get on with his speech about sticking together…Hmm, the speech is going on for a worryingly long time, and he’s stepping near the water, hmm I think something may come along and…oh yeah, there it is, shark leaped out of the water and ate him to get him to shut the fuck up, or you know, throw the audience off!

Wimpish girl dies next. She is pulled under the water.
Well, that’s the end of…
Oh wait, she emerges again sitting in the sharks open mouth (still alive). The shark just sort of parades his conquest in front of the rest of the cast, a bit too smugly. He then goes back into the water. To plot his next devilish plan to hurt their feelings, probably.

Jock wimpish in a crisis guy goes next. He gets bitten in half,. The CGI is so bad that he has two right feet.

Thomas, LL Cool J (Hey, Ice Cube did well out of Anaconda, why cant I?) and Saffron eventually make it to the top.

Thomas ‘ wait, the sharks have planned this, all of this. They know the fences at the very top were made of steel, which is easy to break through, unlike the electrocuted fence at the bottom. They therefore, planned to flood the entire vicinity in order to be free, free in the. …DEEP BLUE SEA!
Saffron ‘ but, how? How did they figure out that the fences are just steel at the top? They’re smarter yes, but they didn’t just develop a knowledge of materials and understand what they can barge through, also, they can't understand English, so they couldn’t have understood any conversations we had about the steel tops. They can’t know by ‘looking’ at the fences either. Also, how the FUCK could anyone have PLANNED all of this.
To shut Saffron up before she ruins the movie, the shark eats her.

Thomas then blows the shark up i.e. the end of Jaws.

LL Cool J raps.