Animaniacs Wiki
Animaniacs Wiki

Leave It to Beavers/Cinebrainia is the first episode of season 3 of the Pinky and the Brain spin-off series and the 26th episode overall. It originally aired on September 8, 1997.

Leave it to Beavers[]

Animation by Akom Film Production

Leave it to Beavers title


After a malfunction in an experiment, Pinky is able to communicate with beavers. The Brain then exploits this skill and enlists the help of beavers in his latest plan to take over the world by flooding it. He intends to accomplish this with their dam-building skills, but negotiations with the beavers are somewhat difficult.



  • This episode's title is a reference to the classic sitcom, Leave It to Beaver, obviously in a literal sense here.
  • A portion of Gioachino Rossini's 1817 opera "La gazza ladra" ("The Thieving Magpie") plays throughout this cartoon in select scenes where Pinky speaks the beaver language.
  • Brain's comment: "I shall return," references the famous quote spoken by U.S. General Douglas MacArthur following his escape from the Philippines.
  • The ending chorus is grunted by the beavers.


  • Electrons are fired from a cathode-ray tube, not photons.


Animation by Wang Film Productions Co., Ltd.

Cinebrainia title


Pinky and The Brain try to capture the adoration of the world by becoming movie stars. Their plan changes course when the world considers them comedic geniuses and experience and unprecedented success. At the height of their comic-fame, Brain being Brain manages to sabotage it all with his boring foray into drama- The Emperor Brain.



  • The title is a reference to Microsoft Cinemania, a computer CD-ROM reference of films, actors/actresses and the movie industry published annually from 1992-1997.
  • Thomas Edison's film is based off the 1903 silent film The Great Train Robbery. There is an urban legend around the film that the people ran out of the theater when the train appeared on the screen (spoofed in this cartoon by the audiences and Pinky thinking the train on-screen was headed towards them).
  • The character of Hal Slug is a caricature of real-life silent film producer Hal Roach.
  • The title of Pinky and the Brain's movie, The Day the Clowns Cried, is a parody of the unreleased Jerry Lewis film The Day the Clown Cried (previously parodied in the Animaniacs cartoon "Hearts of Twilight").
  • The creation of Hal Roach's Our Gang/Little Rascals is satirized when the mice quit Hal Slug's studio.
    • A caricature of Little Rascals star Carl "Alfalfa" Switzer enters the studio, and is referred to by Pinky as a "little rascal."
  • At the end of the cartoon, Brain laments how no mouse will "ever make a lasting impression" on the silver screen. Just then, cartoonist in the audience is seen drawing a mouse into a sketchpad after seeing Brain's silhouette on the screen. This of course, is a nod to Walt Disney and his creation of Mickey Mouse.
  • Brain's "I'm ready for my close-up, Mr. DeMille" bit is a nod to a line spoken by Norma Desmond to (who she believes to be) director Cecil B. DeMille at the end of the 1950 film, Sunset Boulevard.
  • The ending chorus is instrumentally played on a honky-tonk piano as the globe rolls off to the distance, followed by an iris out.


  • When the audience walks out of The Emperor Brain; the film footage briefly clips out of the projector screen (particularly Brain's ear).


Pinky and the Brain's Movies[]

Production Notes[]


Voice Actors: Character(s):
Maurice LaMarche The Brain
Rob Paulsen Pinky
Tress MacNeille Woman
Frank Welker Beaver
Townsend Coleman Hal Slug


Special thanks to Brian Norman's "Bunches of References Accumulated In a Nutshell" (B.R.A.I.N) reference guide for aiding in documenting this episode's references.

List of Pinky and the Brain episodes
Season 1
Das MouseOf Mouse And ManTokyo Grows / That Smarts / BrainstemPinky and the Fog / Where No Mouse Has Gone Before / Cheese Roll CallBrainaniaTV or Not TVNapoleon BrainaparteA Pinky and the Brain ChristmasSnowballAround the World in 80 NarfsFlyAmbulatory Abe / Mouse of La ManchaThe Third Mouse / The Visit
Season 2
It's Only A Paper WorldCollect 'em All / PinkassoPlan Brain From Outer SpaceThe Pink CandidateBrain's SongWelcome to the JungleA Little Off the Top / Megalomaniacs AnonymousThe Mummy / Robin BrainTwo Mice and a Baby / The MazeBrain of the FutureBrinkyHoop Schemes
Season 3
Leave it to Beavers / CinebrainiaBrain NoirPinky and the Brain... And Larry / Where the Deer and the Mousealopes PlayBrain's Bogie / Say What, EarthMy Feldmans, My FriendsAll You Need Is Narf / Pinky's PlanCold Open- A New Direction / This Old MouseBrain StormA Meticulous Analysis of History / Funny, You Don't Look RhennishThe Pinky ProtocolMice Don't Dance / Brain DrainedBrain AcresPinky and the Brainmaker / Calvin BrainPinky Suavo / T.H.E.YThe Real LifeBrain's WayA Pinky and the Brain HalloweenBrainy JackLeggo My Ego / Big in JapanBut That's Not All, Folks!Operation Sea Lion / You Said a MousefulThe Tailor and the Mice / Bah, WildernessPinky at the Bat / Schpiel-borg 2000Broadway MaladyThe Megalomaniacal Adventures of Brainie the Poo / The Melancholy BrainInherit the WheezeBrain's Night Off / Beach Blanket BrainThe Family That Poits Together, Narfs TogetherPinky's Turn / Your Friend: Global DominationYou'll Never Eat Food Pellets In This Town AgainDangerous BrainsWhat Ever Happened to Baby Brain / Just Say NarfThe Pinky P.O.V. / The Really Great Dictator / Brain Food
Season 4

(Part 1 - Brain, Brain, Go AwayPart 2 - I Am Not a HatPart 3 - Wash Harder)
To Russia With Lab Mice / Hickory Dickory BonkThe Pinky and the Brain Reunion SpecialA Legendary Tail / Project B.R.A.I.N.
The Ultimate Animaniacs Super Special: (Star Warners)