History Fridge / PhineasAndFerbTheMovieAcrossThe2ndDimension

* The "Mysterious Force" Candace mentions in this film seems like just Candace trying to justify her failure throughout the summer. Then in 2018 came "The Phineas and Ferb effect" a crossover with Milo Murphy's Law (a spinoff/ sequel show set directly after Phineas and Ferb focused on a kid who is constantly plagued by Murphy's Law) suddenly we see that ''[[TheCuckoolanderWasRight Candace was right]]''. In the story we find out that [[spoiler: Phineas and Ferb have the reverse of Milo's condition - they alter probability so everything will work out for them! The "Mysterious Force" is the Phineas and Ferb effect making sure the boys don't get busted, and therefore get in trouble.]]
* Phineas reacts quite dramatically to Perry's reveal but Ferb doesn't, and while this could just be because he is known as the strong silent type, another theory emerges: ''He already knew''. In "[[Recap/PhineasAndFerbReadyForTheBettys Ready for the Bettys]]", Phineas and Ferb discover Perry's lair, receive "Agent P's" brief and go on his mission before Perry eventually ejects them from his spy car using another vehicle. Phineas assumes Ferb made it, which he attempts to deny every time it comes up, but he keeps getting interrupted, leading to what may have been the angriest he gets in the entire show, frustratedly yelling, "I give up!" Now Phineas goes on assuming it was Ferb's work and not mentioning it again but Ferb... He's a smart kid. He knows ''he'' didn't make it and clearly Phineas didn't, so who really owned the secret lair under their home, armed with a bunch of platypus-themed gadgets and answering to "Agent P"? The bigger surprise would be if he ''is'' oblivious, really. Why didn't he ever bring it up? He figured there was a good reason for Perry not to reveal himself.

* When Doof-2 tries to reveal to Doof-1 that Perry's a secret agent, Doof first thinks he's talking about Phineas, then Ferb, then a plant. He's technically right to guess those three. Phineas and Ferb both accidentally stumbled into Perry's lair once and played secret agent, and Doofenshmirtz was once defeated by a plant so badly it was given a position at OWCA. Hell, Doof himself gave the houseplant its secret agent hat.

** Wrong. She and alternate Charlene are around, as shown by a deleted scene. Their interactions with Doof-2 even seem to go just like they do with Doof-1 and his Vanessa and Charlene.

* Speaking of Doof-2, the fact that he decided to become evil because [[DisproportionateRetribution he lost his choo-choo]] makes you wonder: [[AxCrazy what the hell kind of mindset would allow that?]] Or worse, [[EnfantTerrible what if the train]] [[TheSociopath was just]] [[LackOfEmpathy the excuse]] [[StrawHypocrite he]] ''needed.''

** Confirmed as of ''Tales of the Resistance: Back to the Second Dimension'' where Charlene-2 throws away Choo-Choo causing Doof-2 to resume his life of evil. Not that he actually does anything particularly evil this time. Still, he and Charlene-2 did escape with some help from Vanessa-2 and her new boyfriend.
** Doof-2’s backstory is explained pretty well by him. He had a good life, and a nice toy train… “and one day I lost it” unlike doof-1, doof-2 went mad beyond redemption from one loss.

** I do think. Luckily it seems only to have been for a few months....

** For that matter, how ''did'' he turn Perry into a cyborg into the first place? Did he ''[[WeCanRebuildHim torture him to an inch of his life until his body was a mangled, bloody mess ]]'' [[WeCanRebuildHim that could only be repaired with machinery]]? Then when you consider he almost did the same thing to ''[[WouldHurtAChild Phineas]]''...

* So it's the end of the movie, Doof 2 is defeated and the gang sacrifices this memory to keep Perry and we get a bundle of heartwarming moments, everything's all dandy. But then you think for a second. Our Doofenshmirtz got his memory erased just like everybody else. That means he doesn't remember giving away his train to Doof 2. If by sheer chance he wanted to find the train again, he would discover that it's lost. He would turn into Doof 2! Possibly reflecting the same actions his counterpart had did to the Second Dimension. We don't know anything about this train, but the way Doof 2 mentioned that Doof 1 could have become eviler without it, it's not going to end well.

* Assuming it's not a continuity error... Perry seems to have been pretty young when he was adopted by the boys. He was part of [=OWCA=] from that first day. Do...do they use ChildSoldiers?

*** Alternatively the scientist is the twin sister of the mother from 'Quantum Boogaloo', or an IdenticalStranger, let's be honest, in TV world there's a lot of that, where minor and background characters reuse character models.

* This troper had recently finished watching the movie and was just watching the Christmas special, when she noticed the Doofenshmirtz family portrait. After checking on the wikia for the show, I noticed that the horns from the...freaky animal skeleton in Doof-2's lair match those on Doofinshmirtz' father's helmet. What did Doof-2 do to his father?

*** 'Quantum Boogaloo' implies that the Rollercoaster was one of, if not the first invention the boys made; perhaps the scientist was hired partway through the summer, meaning that she'd be aware the boys always made sure things were safe, while in 'Quantum Boogalo, all they had to go on was the admittedly unsafe looking Rollercoaster.

* Considering they have had less than pleasent encounters with Norm in earlier episodes, one best hope seeing a bunch of evil, Norm-faced robots didn't bring back any unpleasent memories to Phineas, Ferb, or Candace.

* I was just watching 'Attack of the 50 foot Candace' and it occurred to me that in the universe main universe everything and everyone was spritzed with the growth elixer, causing them to grow about 10 times their original size (Candace is stated to be 5'8 and she grows, supposedly, 50 foot tall, hence 10 times the size). So how are other universes to scale?

*** I do think. Luckily it seems only to have been for a few months....

*** And he was willing to do that to Phineas after stating earlier in the movie that ''he thought Phineas was a toddler''.

* Considering he almost got the boys ''killed'' in an earlier appearance, and chased them as a minotaur down the city, one best hope seeing a bunch of evil, Norm-faced robots didn't bring back any unpleasent memories to Phineas, Ferb, or Candace.

* If you take a [[AlternateCharacterInterpretation slightly different look]] at Isabella's crush on Phineas, it explains a few things, particularly her kiss at the end of the movie. She was excited to have her memory erased, even though it confirmed Phineas had feelings for her. But what if she already knows (or suspects) that Phineas loves her, and is merely upset because she's waiting for Phineas to make the first move and he's too distracted to. It matches with most of her interactions throughout the series and it makes this scene make more sense. She can have the fun of kissing Phineas without destroying her romantic plan for how things should go.

* Candace-2 states Jeremy-2 leads a three-man strike team. We never meet any of them, but in the first demension, Jeremy leads a three-man band. Could it be them?

* Phineas reacts quite dramatically to Perry's reveal but Ferb doesn't, while this could just be because he is known as the strong silent type another theory emerges. ''He already knew''. In [[Recap/PhineasAndFerbReadyForTheBettys Ready for the Bettys]] Phineas and Ferb discovered Perry's lair, receive "Agent P's" brief and go on his mission before eventually Perry ejects them from his spy car using another vehicle. Phineas assumes Ferb made it, which he attempts to deny every time it came up but he keeps getting interrupted, leading to what may have been the angriest he gets in the entire show, frustratedly yelling "I give Up!" Now Phineas goes on assuming it was Ferb's work and not mentioning it again but Ferb... He's a smart kid he knows ''he'' didn't make it and clearly Phineas didn't so who really owned the secret lair under their home, armed with a bunch of platypus themed gadgets and answering to "Agent P"? The bigger surprise would be if he ''is'' oblivious really. Why didn't he bring it up? He figured there as a good reason for Perry not to reveal himself, so he didn't bring it up.
* The video game uses an orchestral score for many of it's scenes, and overall sounds ''nothing'' like a Phineas and Ferb game. ''That's the idea.'' The whole game is in different dimensions, so of course the music is out of place!
* In [[Recap/PhineasAndFerbCrackThatWhip Crack That Whip]] Doofenshmirtz says that he was never able to grow facial hair. But Doof-2 has a beard. Why? Because he doesn't share any of Doof-1's backstories.
* Throughout the show, Linda and Lawrence are always doing something that takes them just long enough that they miss what Phineas and Ferb are doing. So in Across the Second Dimension, what are they doing that keeps them away from them for the length of a whole movie? They’re watching a movie themselves! They leave to watch it shortly after the movie begins, and they leave the theater just as the movie is coming to an end!

* What is Ferb referring to when he put's his hand up when Phineas asked about others living a double life like Perry? It could be a noodle incident, or it could be a reference to the fact that Linda doesn't know what the boys do every day, and so technically they're living a double life as normal kids.

* As a matter of fact, the title itself is a case of this. While it obviously refers to the second dimension that plays home to the alternate versions of Phineas, Ferb, and company, there's a second, hidden meaning behind it. [[spoiler: Throughout the show's various stories, Phineas and Ferb's adventures are constantly interacting with Perry's but are treated almost as two different stories, or in other words, ''dimensions''. Of course, it's been implied in various episodes that Perry is partially responsible for the boy's inventions disappearing, but having him exposed as a secret agent to the brothers adds a whole new dimension to their adventures. The central theme of the movie revolves around Phineas and Ferb's relationship with Perry, and what happens when their two stories, or ''dimensions'', end up crossing and meeting each other!]]

* As a matter of fact, the title itself is a case of this. While it obviously refers to the second dimension that plays home to the alternate versions of Phineas, Ferb, and company, there's a second, hidden meaning behind it. [[spoiler: Throughout the show's various stories, Phineas and Ferb's adventures are constantly interacting with Perry's but are treated almost as two different stories, or in other words, ''dimensions''. The central theme of the movie revolves around Phineas and Ferb's relationship with Perry, and what happens when their two stories, or ''dimensions'', end up crossing and meeting each other! Of course, it's been implied in various episodes that Perry is partially responsible for the boy's inventions disappearing, but having him exposed as a secret agent to the brothers adds a whole new dimension to their adventures.]]

* Speaking of Doof-2, the fact that he decided to become evil because [[DisproportionateRetribution he lost his choo-choo]] makes you wonder: [[AxCrazy what the hell kind of mindset would allow that?]] Or worse, [[EnfanteTerrible what if the train]] [[TheSociopath was just]] [[LackOfEmpathy the excuse]] [[StrawHypocrite he]] ''needed.''

** False. During the appropriate backstory scene in “Gaming the System,” the toy can clearly be seen to be a stagecoach with two horses.

* The "Mysterious force" Candace mentions in this film seems like just Candace trying to justify her failure throughout the summer. Then in 2018 came "The Phineas and Ferb effect" a crossover with Milo Murphy's Law (a spinoff/ sequel show set directly after Phineas and Ferb focused on a kid who is constantly plagued by Murphy's Law) suddenly we see that ''[[TheCuckoolanderWasRight Candace was right]]''. In the story we find out that [[spoiler: Phineas and Ferb have the reverse of Milo's condition - they alter probability so everything will work out for them! The "Mysterious Force" is the Phineas and Ferb effect making sure the boys don't get busted, and therefore get in trouble.]]