How did Perseus know that lifting his sword at that moment would cause it to get struck by lightning for some reason? And why does throwing the sword at Hades apparently trap him in the Under World again?
He didn't. Throwing the sword was the most logical attack. What else could Perseus have done in that situation? Leaped off the cliff and try punching Hades? Second point is Rule of Cool, as apparently the lightning of Zeus can do whatever the plot requires, it's the manifestation of a god's power after all.
This troper thought that since they showed the lightning earlier and since he thrust his sword upwards before throwing it, that Zeus was watching and had enough power left to at least throw a lightning attack, thus Perseus lifted the sword up to say "Target This for the Win!" and threw it, Zeus aiming the strongest lightning bolt he could at the sword to help damage Hades...Father and Son working together. Which , combined with Hades being drastically weakened by the Kraken's death, might also explain Hades going back to hell, from the power of a god and demigod combined.
The people of Argos are the ones who invoked Hades wrath by desecrating the statue of Zeus. Persus' family was just in the wrong place at the wrong time. Shouldn't he be more pissed at them, than trying to help them?
This is Hades, the most malevolent of the gods featured in the movie. As he said, he regards humans as the dust beneath his fingernails. "Oh, there are some more humans over there in that boat." is like "More cockroaches to squash." Unlike the other gods, Hades doesn't need to have considerations for the feelings of mortals. He alone doesn't need their love. All they have to do is feed him their death and fear.
What was up with the owl thing? No really. It just came out of nowhere.
The owl was the annoying wacky talking robot animal sidekick in the 1980's film. It was stupid even by 80's standards.
Stupid? Bubo was one of the best things in the excellent 80s version (to a kid, anyway).
Not just kids! Though I'll admit I've always been fond of old style clocks and other machines powered in a similar fashion. (like Bubo perhaps?)
Since Perseus is a demigod, would he become more powerful if people began to worship him?
That wasn't usually the deal with demigods, though it may have been what Zeus was offering him. As an Olympian, the prayers of mortals might have given him immortality/powers/full godhood. It still might. Personally, I figure he's like a Dhampir: he might not get stronger with worship, but he won't keel over if people don't know who he is, or even start despairing/hating him.
So, uh, why did Zeus help Perseus at all? He was clearly on board with Hades' plan up until Hades come right out and explains how it's going to screw Zeus. There doesn't seem to be any reason to give aid to the person who is going out of his way to stop your return to power.
For all of Zeus' faults, he always felt at least a small degree of affection and concern for his children, i.e. granting Artemis her wishes to be young and unmarried forever and saving Dionysis by sewing him inside of his thigh so he could be born.
Having watched the deleted scenes on the DVD, it seems that the plot used to make more sense. The sword, the Pegasus and even the coin for Charon were originally going to be done by Apollo, who had seen through Hades and so was finding a way to stop him without pissing off daddy. Then all those scenes got cut. I honestly can't think why.
"Don't look at her face." Followed by "Oh that's her stomach, let me continue looking up, up, oh crap." Then "Oh no, he's stone I guess I shouldn't look at her, ooh pretty oh crap" Then "Let them know men did this, with their eyes open when I could easily close them." Seriously, they were trained soldiers.
Zeus kept talking about how gods were losing power without man's prayer. In the climax, he and Hades are among hundreds of troops. Why didn't anyone bother to pray to the both of them so they would be more powerful as they fought Kronos? It would've probably have helped prevent Zeus's death. Then again, if I were him, I'd want to get the hell out of this movie franchise too...no pun intended...
The soldiers are only about hundreds to a thousand, it's nothing compared to 6 billion population of the world, even if they prayed they'd only give Zeus one extra spark of bolt. And besides, soldiers praying in a battlefield with a volcano giant rampaging? That's just dumb.
I understand what you're getting at, but I guess my bigger problem is that they never establish just how much power a god can get from any given number of people. If you're saying that only a thousand men praying wouldn't make much of a difference, that's perfectly acceptable, but they never say that in the film. Plus, you don't have to stop what you're doing to pray—the soldiers could have prayed as they fought, unless there's some special rules involved with praying in their culture, which, again, was never established. The film just leaves so many things to be guessed at.
If they didn't need to stop fighting to pray, who's to say many of them weren't actually praying during the battle? Maybe without them Zeus and Hades wouldn't have survived so long.
There weren't anywhere near six billion people around in the era when the films were set, and the vast majority of the world's population at the time worshiped other pantheons and had no clue who Zeus was. Several hundred soldiers praying at once probably should have been enough to make a difference.
Why is Andromeda blonde in the sequel? Did they have hair dye back then? Honestly, getting a new actress makes sense but having her be blonde but still the same character from the previous movie is really confusing.
Why is she even white in the first place? In the original myth, she was from freaking Ethiopia (which in case you didn't know is in sub-Saharan Africa)!
Ethiopia, the real-world modern country, is indeed in sub-saharan Africa, but the mythological kingdom of Ethiopia, home of Andromeda, didn't have a clear location. Some classical myths placed it in north africa, others in modern Israel, and artistic representations of Andie through the centuries have depicted her as white.
So Perseus claims that he didn't want to leave his son behind when Zeus came to him asking for help to bargain with Hades in the Underworld. Okay, I get that but...Zeus is the most knowledgeable deity in the world. Couldn't Perseus just have asked Zeus to hide his son in a secret place that no one knows about while he went with them to Tartarus? Even without all of his powers, Zeus would have found a place to hide the boy that would keep him safe.
How in blue blazes did Ares figure out that Helius made the wooden dagger and then deduce who Helius was and where he'd be in the village amidst all the chaos at the climax of the film? The Willing Suspension of Disbelief pretty much shattered for me at that point.
In the beginning of the film, Ares mocked Perseus for going fishing while the world is in danger, so Ares probably knows a considerable information about Perseus life, the wooden dagger only gives him the idea to bring Helius to watch Persus death, it's still a mystery how come he knows where Helius is though.
How did he know? Aries is a god after all, and gods are often attributed with senses and abilities beyond the mortal kin.
How did Io die? I thought she was a demi-god. She should have lived as long as Perseus, unless Zeus brought her back as a human woman and just didn't say that at the end of the first film. But that still doesn't excuse them from not explaining how or why she died even if she were human.
Likely she came down with a fatal case of They Couldn't Get Gemma Arterton Back For The Sequel.
When Hades told the entire kingdom that the Kraken would arrive in x-amount of days to destroy their city...he didn't say they couldn't leave. So why the hell did the entire city of people just sit around waiting for the Kraken to kill them all? They had plenty of time to relocate. Even if there were no towns nearby, they would still have had enough time to find a new place to build a temporary home and not be smashed to pieces by a giant angry fish thing.
Relocation was not really an option. Even if they fled the gods could have stilled killed them by sending a plague. They would have had to leave most of their supplies behind making them vulnerable to death or enslavement by another city-state. No other city-state would have let them in their borders due to fear of the gods.
In the end of Wrath, Perseus seems to kill Cronos with the Spear of Atrium. If Cronos indeed died with it, you gotta wonder, why did Zeus, Poseidon and Hades not kill him with it when, you know, he was imprisoned? And in that very fight, if Cronos' shockwave punches were so powerful as to get Zeus near-killed in two hits, why didn't he, you know, lead with that?
An in-story reason might be the gods did not trust each other enough to give up their personal weapons or wanted Cronos to suffer. The real reason like many of the plot holes in the remake and its sequal is Plot Induced Stupidity