Film Theory: You Are Breathing POISON! (Phineas and Ferb)
Subscribe to never miss a Film Theory! ►
It's been a while since we talked Phineas & Ferb, so I knew I needed to check in to see if there were any new theories being concocted in that backyard. It turns out, there totally IS! Today Theories, we are talking about the killer plant from SPAC! In the 'Phineas and Ferb the Movie: Candace Against the Universe' we come up against an alien species that needs something from earth. Theorists, that is just the set up to a KILLER theory!
Get yourself some Theory Wear! ►
Don't miss a Film Theory! ►
#PhineasAndFerb #Perry #Disney #DisneyXD #Phineas #Ferb #DisneyTheory #KillerPlants #Theory #FilmTheory #Matpat #Trailer
Need Royalty Free Music for your Content? Try Epidemic Sound.
Get Your 30 Day Free Trial Now ►
Rick's True CRIME! | Rick and Morty ►►
How PICKLE RICK Functions! ►►►
Blair Witch's SECRET DANGER! ►
Ariel & Hercules Are RELATED?! ►
Writers: Matthew Patrick and Justin Kuiper
Editors: Koen Verhagen and Josh Langman
Assistant Editor: AlyssaBeCrazy
Sound Editor: Yosi Berman

  • Denmark

    Matpat: ''Mushrooms aren't green'' Death cap: ''Am I a joke to you?''

  • Piechew Community
    Piechew Community

    what about their radar where they find carbon dioxide? is it just malfunctioning

  • The.promised.weirdo

    "Big mood Candas, big mood"

  • Khalid Bell
    Khalid Bell

    I just want to say thanks for putting Funguy from Chrono Cross into this video. That's my all-time favorite game.

  • Catalyst Girl
    Catalyst Girl

    “She can control people through a plant” Me: *Wings of Fire arc 3 flashbacks*

  • Benny Worm
    Benny Worm

    Me looking at the thumbnail: The result of pcs crossbreading

  • Frey V
    Frey V

    Omg me and my partner watched it like Two weeks ago!!!

  • anthony muffin
    anthony muffin


  • Some Guy
    Some Guy

    omg, I caught that Chrono Cross reference!!!

  • Meme C.I.E
    Meme C.I.E

    Feed me Seymour

  • Christine Sweet
    Christine Sweet


  • BroItsZion


  • Rick Sanchez
    Rick Sanchez

    If Aliens have different properties then can't Alien Mushrooms have different properties too?

  • Ace Dynamite
    Ace Dynamite

    You should make a channel called health theory and the logo should be a heart

  • Dawolfma Plays
    Dawolfma Plays

    How do you know those are mushrooms? What if Super Super Big Doctor mixed up the translations? "I THINK in your language it's called carbon dioxide."

  • jame2041 jame2041
    jame2041 jame2041

    0:33 / 11:39

  • Sprixxy’s WRLD Ψ
    Sprixxy’s WRLD Ψ

    I thought you were kidding about that the movie was a thing ):

  • AwesomeBoysJPTV

    Matpat: You're exhaling H20 when you breathe out ME: What????? Vomit?????

  • Joshua

    I watched this, don’t understand how it got 100% rotten tomatoes.

  • Christine Miller
    Christine Miller

    I love it i watched it when it frist came out

  • marco getchell
    marco getchell

    2:20 wacey twist!!!

  • aandes account
    aandes account

    “Did anyone else know this existed? Yeah me either” Me: I did I was waiting for it. Wait...MY life must be so boring to wait for that movie. :(

  • Psychotic Coconut
    Psychotic Coconut

    Raya and the last dragon. Is Kumandra based on Pangea? And if so please make it dark. I like having my childhood ruined.

  • Tasty Jason
    Tasty Jason

    'The roblox cluster'

  • That Guy3287
    That Guy3287

    Mind controlling spores? Wait, MIND CONTROLLING SPORES!? Do plants use spores??? What plant controls minds or muscle with spores!? I can't spell it so I'm calling it the zombie fungus. THE STUFF THAT YOU HAVE DISCUSSED IN PREVIOUS VIDEOS!!

  • Lunar Moon
    Lunar Moon

    Dr.doof always fails at all of his projects- just like everyone else he is literally sooo relatable- someone had to say it

  • Cyber Runner
    Cyber Runner

    Me and the other Fanders loving that Thomas Sanders is in this: :D


    Why the heck is DAD commenting on this fun little Phineas And Ferb video

  • Iris Gonzales
    Iris Gonzales

    this is how scrience classes must be taught 😅

  • Vince Aaron Vergara
    Vince Aaron Vergara


  • Icedragon

    Make a theray about slime ranchers I need my childhood killed

  • Icedragon


  • Viktoriya Mokhnatyuk
    Viktoriya Mokhnatyuk

    for early life on earth oxagen was a poisson

  • Battle Chiky
    Battle Chiky


  • Battle Chiky
    Battle Chiky


  • Battle Chiky
    Battle Chiky


  • Battle Chiky
    Battle Chiky


  • Battle Chiky
    Battle Chiky


  • Battle Chiky
    Battle Chiky


  • susan Solomon
    susan Solomon

    I watched a movie about if you go onto space what you’re talking about right now what are you talking your talking or you’re talking about I know what you’re talking about what are you talking about right now I know I watch it I watch it when I go to OMG

  • Mr Godzilla gojira 1954
    Mr Godzilla gojira 1954

    0:26 me when I’m sad

  • Kenia Monterroso
    Kenia Monterroso

    The sharp key rhetorically embarrass because salmon cytogenetically rescue save a homeless hyena. unarmed, tedious department

  • Some One
    Some One

    I just learned about the krebs cycle and the photosynthesis and cellular respiration

  • Corbin Sprague
    Corbin Sprague

    I love your content

  • STandMyDoggo

    Wow!! Theres 9,999 comments... well not anymore 😏 I have the 10,000th comment

  • Gregory 99
    Gregory 99

    Teacher: today we are going to talk about plants and what they want to live Me: expert

  • -.;RoDenT•_•qUeeN ;.-
    -.;RoDenT•_•qUeeN ;.-

    Big mood 😭✋

  • Teagan Buckson
    Teagan Buckson

    10,000 comment so I'm going to say FIRST

  • Just Me Content
    Just Me Content

    Did i understand any of these chemical names? No. Am i too lazy to search them up? Yes. Did i still like this video? Yes.

  • Ziona P
    Ziona P

    Make him get 100k likes!

  • Gabrielle Wilks
    Gabrielle Wilks

    I knew the movie existed I saw an ad.

  • Prerna Soopal
    Prerna Soopal

    mat pat can you do a theory about moanas grandpa

  • Somebody Someone
    Somebody Someone

    13 years is a pretty long summer.

  • Jake Manderson
    Jake Manderson

    Did I watch school in my weekend

  • Sol Venice Villegas
    Sol Venice Villegas

    10:42 Pause the video and click this what do you see?

  • Bob Travis
    Bob Travis

    Plants cant access this 78% of the atmosphere they need bacteria to do the heavy lifting

  • NoobearGaming

    me and my sister watched this after forgetting that phineas and ferb existed for a while (my favourite song is the dr doofenshmirtz adulting song)

  • Sush1boy

    Plants create FLUCTOSE not glucose!!!

  • The Weirdo 888
    The Weirdo 888

    what's hazbin hotel?

  • The Weirdo 888
    The Weirdo 888

    *one of the feeb-la-oot ships accidentally abducts a pile soil instead of a person* *The chosen one song plays*

  • 9A 11 Anantika Kumar
    9A 11 Anantika Kumar

    Great theory! I love it but I the message of the movie might be like the earth has excess carbon dioxide because of global warming or something.

  • Beautiful bunnies
    Beautiful bunnies

    Lol is it weird that I knew about the candace movie but I didn't know about soul until it was recommended to me on disney plus

  • Carmen Brown
    Carmen Brown

    0:26 is me every day

  • Lowie R
    Lowie R


    Did you not come up with anything for soul?

  • Angles

    Film theory is the result of when you finally figure out what to do with your over thinking.

  • Hwikek

    When you think your theory is so bad that you preempt the audience to curb their enthusiasm.

  • Toxicflower4

    Plants don’t have mind controlling spores but the “zombie fungi” or Ophiocordyceps unilateralis does. It mind controls or takes over the body’s of ants and other bugs. It’s kinda scary but you could look it up if you want. :)

  • Eileen Lenz
    Eileen Lenz

    I don't know if you will see my comment but I think i have a topic for you😅 in Phineas and Ferb Season 2 Episode 4 "Candace Holmes" Ferb is putting Butter on his body to go down the Waterslide faster. I think this would be a nice Theory 😊 Ps. I love your Theory Videos (on all channels!!!) ❤

  • summerstars07


  • Hank J. Wimbleton
    Hank J. Wimbleton

    me listening to this video: mhm mhm intresting what i gathered: mama doesn't need oxygen, she needs something else or whatever

  • Thepack777

    Good look ever explaining the crepps cycle matt

  • Álvaro C.
    Álvaro C.

    It's been a month and five days, MatPat. WE'RE DUE SOME MORE CHILDHOOD DEFENESTRATION, MATPAT.

  • pickle king
    pickle king

    I watched this the the MORNING it came out

  • mrjojokester

    My allergies have arrived... Go away allergies, my head hurts

  • Sams the bezt at stuff 888
    Sams the bezt at stuff 888

    Maybe the mushrooms also exhale oxygen

  • Art's Life
    Art's Life


  • Subscribe to technoblade
    Subscribe to technoblade

    Matpat. Let the kids movie, be a kids movie.

  • Ross Bob
    Ross Bob

    Basically everyone who had it as part of their childhood in some form was excited for this movie

  • Tom Crowell
    Tom Crowell

    @the film theorists, you forgot that spores are how the plant would reproduce. Therefore when the mama plant releases it's spores there could be thousands of similar plants springing up on Earth. The Earth would be covered in man eating plants similar to the end of little shop of horrors.

  • Ugandan Knuckles
    Ugandan Knuckles

    Mat:you've been breathing poison me:WRONG

  • Jeffy

    That mission was fun.

  • Jacen 1
    Jacen 1

    A minor quibble; plants do use oxygen to extract the stored energy from the sugars they produce; it's just that a large portion of those sugars are used to make structural cellulose, and thus are not used for energy. Thus, they produce more oxygen then they need, but still need some.


    I cant believe you make photosynthesis hard to understand

  • Jodi Cross
    Jodi Cross

    One huge oversight you made is that alien mushrooms probably don't work like mushrooms on earth they could breathe in uranium and breath out gold for all we know

  • Diego Van der pennen
    Diego Van der pennen

    Plants wither is like minecraft say that

  • super r
    super r


  • TheAdvertisement

    0:38 Phineas with googly eyes is cursed.

  • Arshish Balaporia
    Arshish Balaporia

    "Galactic travel inator" is just 🔥🔥

  • Nicky Mejias
    Nicky Mejias

    so we are not breathing posion we are creating one greenhouse gas.

  • Freddyc958

    the more u know in 6:00 - 6:20

  • Type 99
    Type 99

    Assuming that those mushrooms are the same as Earths mushroom yes.

  • CHTech Industries
    CHTech Industries

    Plants also make CO2, since they preform Cellular Respiration. They just make excess sugar, which we eat.

  • Need For Sneed
    Need For Sneed

    I have a theory idea for you guys. Im currently watching Tom and Jerry (the originals) and there was a clip of Jerry lifting a puppy on the end of a easily 4ft spatula. TLDR: theory on how strong Jerry is and how that compares to other characters of other shows

  • I’m no Idiot
    I’m no Idiot

    My brain after this video: 🤏

  • Astro Menuisix
    Astro Menuisix

    Hum, the problem is that plants can't use the nitrogen in it's gaseous form. They have to depend on humans or microorganisme like bacteria and microspic mushrooms to harvest it and transform it into nitrate. That is why fertilizers are such a problem for rivers and lake since it encourage the algea to grow too much when they are suppose to.

  • vizthex

    if I had a nickel for every time candance met aliens, I'd have like 3 nickels. which isn't a lot, but it's weird it happened (at least) thrice

  • Mr_SwitTaco

    Thank you 7th grade science, you really were useful today

  • Dr. Shadow C.
    Dr. Shadow C.

    Me: Hears about a movie I haven’t watched Also Me: Contemplates if I should watch the video or the movie first.

  • xdragon 01
    xdragon 01

    1:30 I'm pretty sure everyone rememberd Gravity Falls when he said : '' and only one can be the best ''