The second entry in the Spider-Man Trilogy, this sequel to Spider-Man was released in 2004. Peter is struggling to find balance in his life, as the increasing burden of being a superhero gets in the way of his relationship with his studies, job, friends, family, and the woman he loves. Once the stress begins to affect his powers, he decides to give up being Spider-Man once and for all.This comes at a bad time, since the brilliant scientist Dr. Otto Octavius (Alfred Molina) is caught in a Freak Lab Accident that not only kills his wife, but also attaches four mechanical tentacles to him. Going insane, he becomes the evil "Doctor Octopus" and is determined to retry the failed experiment on a much bigger scale—For Science!, of course. With the city in danger and his relationship with Mary Jane in doubt, Peter is forced to "get back to work".Followed by Spider-Man 3.
This film provides examples of:
A.I. Is a Crapshoot/Psycho Prototype: The tentacles - they tend to do things that protect themselves and Octavius, but are extremely twisted in their ways, and are more keen to destroy in order to get what Otto wants rather than anything else.
Anti-Climactic Unmasking: Played straight and then averted. The first time Peter loses his mask, the crowd of people don't know who he is. The second and third time it's taken off, Harry, Dr. Octavius, and Mary Jane recognize him.
Anti-Villain: Dr. Octopus. Now, when he's bad, he's really bad. But his whole nature is still so tragic, and he does redeem himself in the end.
Artistic License - Biology: The cerebellum, to which Octavius's arms are linked, is a processing center for balance and coordination. Their AI shouldn't have had the means to communicate with Octavius's consciousness or skew his emotions, because it's only motor-related regions of the (conscious) cerebrum that interact with the cerebellum, not its sensory regions or limbic system.
Nuclear fusion really is the process by which the sun generates energy. But a nuclear fusion reactor won't look like the sun unless it's as big as the sun (over a million kilometers across). The reason the sun has prominences and a photosphere and sunspots and all the rest is because there are thousands upon thousands of kilometers of hot gas that aren't undergoing nuclear fusion, sitting on top of the core and obscuring it from view.
And, worse, the reactor in the movies doesn't just look like the sun, it looks like the sun filmed in X-ray light and shown in false color so that we mere humans can see its surface structure. No one except Ock is even wearing glasses to protect their eyes from that sun, though it should have rendered them blind in minutes.
On top of that, you'd think that dipping a small sun into a large body of water to quench it down would provoke a devastating explosion of steam, if not outright plasma from all the ionized hydrogen and oxygen.
Badass Bystander: Everyone in the train when rise up against Octavius to protect Spider-Man... they don't succeed, but it takes some stones to stand up to a villain with four mechanical arms.
Peter does this earlier in the film, when sans powers, he runs into a burning building to rescue a trapped child. He gets her out safely, but unfortunately, then finds out that there were more people trapped on the fourth floor that didn't make it.
Badass Grandma: Aunt May! When she is captured by Octavius in the building wall fight, she makes sure he knows that she's not going down without a fight by smashing the end of her umbrella into his face.
Bank Toaster: A Morally Bankrupt Banker, on top of denying Aunt May and Peter Parker a loan, denies them a coupon for a free toaster! Because of a certain minimum deposit that is required.
Big "NO!": Octavius lets a particularly narmful out when he sees the murder and destruction his tentacles have wreaked while he was unconscious, and then lets another one out as he is dragged underwater with his overloading fusion machine. The second one manages to be fairly tragic, as he had just made his Heel-Face Turn and his last comment was a pledge not to die a monster, with his "NO!" reaffirming this as he sacrifices his life.
Blade Below the Shoulder: The tentacles have a blade inside them. Which is odd, if you think about it, since the tentacles were built for experiments, not combat.
Call Back: In the first film, Spider-Man attempts to save a woman from a burning building, but it turns out to be Green Goblin wrapped in a blanket and shrieking in falsetto. In this film, Peter - temporarily powerless - braves another burning building to save a child who is wrapped in a blanket, which happens to be green. Get it?
Disproportionate Retribution: JJJ is finally convinced that Spider-Man is a hero and was really fighting for the good guys this entire time... up until Spidey takes back his superhero suit from JJJ's office, causing him to accuse Spider-Man of being a thief, which is funny, given that Jonah pretty much scammed the goddamn suit off the guy who found it.
Go Through Me: The train passengers try to protect Peter from Octavius. They fail.
Hand Wave: A major one. In reality, it would take Dr. Octavius thousands of years and a solar system's worth of space to create a protostar, not a few moments. Secondly, the heat generated from the protostar would kill everyone within a short radius instantly, but since this is Fiction Land, all the writers need is a scoop of Unobtainium to avoid accusations of Critical Research Failure.
How Do I Shot Web?: Appropriately enough. In this case, it involves trying to scale an alleyway, but this fails.
I Have This Friend: Peter recounting his loss of powers about his... sorry, his friend's dream of being Spider-Man and losing his powers to his doctor.
I Call Her "Vera": Alfred Molina gave pet names for the four mechanical tentacles. Harry and Larry were the bottom two, Moe was the top right one and Flo was the top left one.
Ironic Birthday: Peter's birthday party counts as it comes the same day he gets fired from his pizza delivery job.
Ironic Echo: In a blink-and-you-miss-it shot, after Peter tries to maintain a "strong focus on what I want" and jump from one building to another, his powers give out in midair and he comes crashing to the ground, and throws his back out... and we see that the car he landed on was a Ford Focus.
Made of Iron: Considering his lack of super-strength, Dr. Octavius survives quite a pummeling in all of his fight scenes with Spider-Man. In addition to the blows from Spidey's super-powered fists, he also gets smashed against a taxi hard enough to dent it and falls 20 stories onto an 'L' train car, all with no injuries.
Not to mention simply hauling around the weight of those arms so much of the time without falling over.
Meaningful Name: "Guy named Otto Octavius winds up with eight limbs? What are the odds?"
Multi-Armed Multitasking: Dr. Octopus does this when he builds the new sun-generator machine, with his long metallic tentacles.
Mythology Gag: Possibly, with Dr. Octopus holding Aunt May hostage. In the earlier comics, May (true to form at the time) was blissfully unaware that Dr. Octopus was a bad man, in this movie however, it's pretty clear.
Oh Crap: A nice group example of the snared up police car, seconds before "...it's a web!!"
Omnidisciplinary Scientist: Octavius is brilliant nuclear physicist who has nearly perfected a viable source of infinite power from nuclear fusion. On the way, he has also made revolutionary breakthroughs in robotics and software engineering to create his intelligent arms. Not only that, but he must have developed an extremely effective power source even before the fusion reactor just to power the extremely strong arms.
Panty Shot: Near the end as that wall's about to fall on Mary Jane and just before Peter catches it. Mary Jane falls backards, the wind blows her skirt up, giving the audience a quick view of her white panties.
The Paragon: Aunt May points out to Peter that Spider-Man is a symbol of hope to people who are in the face of despair and that you trust him when he tells you to hold on for just a minute longer, and that even the boy across the street wants to be Spider-Man when he grows up.
This saves Peter at the end when the people on the train rally against Octavius to protect an unconscious Peter, seeing him unmasked and realising that the hero putting himself in harms way to save them is "just a kid, no older than my son".
Too Dumb to Live: Dr. Octavius, we know you have incredible confidence in your machine, but at the same time, did you ever stop to think that maybe conducting a test on an experimental fusion reactor in New York City - where there are over 20 million people - was an incredibly wise decision? And this was before you went crazy?
Train Stopping: Peter uses webs as a stretch net to brake the train to a stop
Funny enough, it actually becomes Truth in Television about 10 years later from a research conducted. Apparently, using the webs to stop the train can actually work.
Although it is an unusual example, since tritium is a real substance and is used in some fusion experiments. However, real tritium is nothing like the substance portrayed in the movie, and it effectively functions as Unobtainium that just happens to have a semi-accurate name.