Let’s start by showing y’all the trailers, shall we?

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Non-Spoiler Plot Rundown

Phineas and Ferb’s summer takes a wild turn when they help Dr. Doofenshmirtz fix a machine, not realizing it’s actually evil and will open a portal to another dimension. Once they cross over, they find themselves in a dystopian version of their world—one where Doof is actually competent and tyrannical. While there, they also finally discover Perry’s secret: he’s a secret agent. This revelation causes emotional tension, particularly for Phineas, who feels betrayed. And it only escalates from there.


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Character Breakdown (including 2nd Dimension versions)

Phineas Flynn (and 2nd Dimension Phineas)

Prime: Relentless optimism and big ideas.

2nd Dim: Slightly more serious but still curious.
Iconic lines:


1. “Ferb, I know what we’re gonna do today!”


2. “You lied to us, Perry!”


3. “Let’s do what we do best—build!”



Ferb Fletcher (and 2nd Dimension Ferb)

Prime: Quiet, brilliant, and supportive.

2nd Dim: Also quiet, but ready for a fight.
Iconic lines:


1. “If I had a nickel for every time I was doomed by a puppet, I’d have two nickels.”


2. “Well, this is unexpected.”


3. “I never leave home without my battle-mech.”



Perry the Platypus (and Cyborg Perry)

Prime: The loyal pet with a secret agent alter ego.

Cyborg: A brainwashed enforcer under Doof’s rule—until his heroic redemption.
Iconic lines:


1. Chitters


2. Kicks down door wearing hat


3. Refuses to attack Prime Phineas when ordered



Dr. Doofenshmirtz (and 2nd Dimension Doof)

Prime: Lovable failure with ridiculous schemes.

2nd Dim: Terrifying fascist overlord.
Iconic lines (Prime):


1. “Behold, the Other-Dimension-Inator!”


2. “Curse you, Perry the Platypus!”


3. “I’m not evil, I’m just misunderstood!”
Iconic lines (2nd Dim):


4. “I’ve conquered this world, and now I’ll conquer theirs.”


5. “Destroy them!”


6. “You disappoint me, Agent P.”



Isabella Garcia-Shapiro

Fierce, loyal, and Phineas-obsessed.
Iconic lines:


1. “Whatcha doin’?”


2. “That’s the bravest thing I’ve ever seen!”


3. “You better come back, or I’m gonna kick your butt.”

Candace Flynn (and 2nd Dimension Candace)

Prime Candace: Obsessed with busting her brothers, often teetering between meltdown and determination.

2nd Dimension Candace: A hardened rebel leader who fights Doof’s regime and is a full-on resistance badass.
Iconic Lines (Prime):


1. “Mom! Phineas and Ferb are building a giant robot!”


2. “This is the day I bust my brothers!”


3. “You’re so busted!”
Iconic Lines (2nd Dim):


4. “They took everything from us. It’s time we take it back.”


5. “I don’t know you… but I like your attitude.”


6. “Welcome to the resistance.”





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Favorite Song from the Film

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Final Thoughts

This is a rare perfect TV-to-movie transition. It keeps the humor, style, and heart of the original series while raising the stakes with an emotional story, a dark mirror world, and surprising character depth. Seeing Phineas and Ferb angry, hurt, and eventually forgiving Perry? It hits. And the alternate dimension stuff is such a fun sci-fi twist. Also: the song slaps.

Rating: 10/10

A dimension-hopping summer masterpiece.


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Spoiler Warning

Ok, now let’s dig into the spoilers. If you haven’t seen the movie, stop reading and go give it a watch. You won’t regret it.


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Spoiler Breakdown – Act 3 Chaos & Catharsis

The final act is a war. Phineas and Ferb storm Perry’s secret base, use the dimensional portal to retrieve all their old builds (from rollercoasters to giant robots), and wage an epic battle against 2nd Dimension Doof’s army. Watching every invention they made over the summers return as war machines? Goosebumps. The payoff is massive.

Meanwhile, Cyborg Perry—2nd Dimension’s brainwashed enforcer—jams his spiked hand into an electric circuit, accidentally frying his programming. This reverts him back into an innocent Perry, and the 2nd Dimension Phineas and Ferb joyfully reunite with their platypus. Emotional damage: maxed out.

Then there’s the bittersweet ending: the gang has to say goodbye to Perry’s secret life. To protect reality, Carl (that’s the sergeant’s name!) wipes their memories. But not before Isabella kisses Phineas—a long-awaited moment that finally gives her closure. Perry watches silently, knowing he can stay… but only as a pet.

Phineas’ voice cracking as he says goodbye hits hard. And seeing Perry sacrifice that emotional connection to protect them? Devastating. But it’s also beautiful.