!Comic strip trivia:
* TechnologyMarchesOn: A 1996 strip has RJ and Verne pointing out that a neighbor's computer has a 140 ''mega''hertz processor, a ''three''-gigabyte hard drive, 36 ''mega''bytes of RAM.
* WhatCouldHaveBeen: Michael Fry's original pitch for a FunnyAnimal comic was ''The Secret Life of Pigs,'' which was essentially ''Over the Hedge'' but with farm animals instead of suburban wildlife. [[ExecutiveMeddling The syndicates]] thought said strip was funny but insisted that readers wouldn't be able to relate because "nobody lives on farms anymore," prompting Fry to change the setting and title.

!Movie trivia:
* ActorInspiredElement: Penny and Lou's "super duper" catch phrase, as well as the Midwestern accent to go with it, was an inside joke from Eugene Levy and Catherine O'Hara's youth. The two of them grew up on Ontario, so most of their television broadcasts came from the Midwest in the United States, and one American ad they'd frequently see was for a supermarket called The Super Duper Store.
* AllStarCast: Bruce Willis, Garry Shandling, Steve Carrell, Wanda Sykes, William Shatner, Nick Nolte, Eugene Levy, Catherine O'Hara, Thomas Haden Church, Avril Lavigne, and Allison Janney.
* AscendedFanboy: Creator/WilliamShatner agreed to do the film because he loved the comic strip.
* BannedInChina: Banned due to its "deception of a free world."
* CastingGag: During the credits, the cast watches TV.
-->'''Hammy:''' Just like Khan in ''Film/{{Star Trek II|TheWrathOfKhan}}''! The Genesis project was in the hands of the Enterprise, but Khan had his perfect plan to steal the invention of renewable life!
-->'''Verne:''' [[DeadpanSnarker Well, that was incredibly specific.]]
* CelebrityVoiceActor: In the Japanese and Korean dubs, Heather is voiced by the Korean singer [[Music/BoAKorea BoA]].
* ChannelHop: The was the first Creator/DreamWorksAnimation film to be distributed by [[Creator/{{Paramount}} Paramount Pictures]].
* DevelopmentHell: The sequel is still in pre-production.
* FakeNationality: Subverted with Tiger, the Persian cat, played by the British-Iranian Omid Djalili.
* RealitySubtext: Stella (Wanda Sykes) gets upset when Penny says that she needs a man. She also happens to be played by a lesbian.
* StillbornFranchise: The movie is unique among [=DreamWorks=]' stillborn franchises in that it actually did well both critically and commercially, but disagreements that the studio had with United Media (who at the time owned the rights to the franchise) ultimately resulted in the cancellation of ''Over the Hedge 2'' as well as a ''ComicStrip/PearlsBeforeSwine'' movie.
* ThrowItIn
** "I thought we'd be dead by Step Two, so this is going great!", among other adlibs, were thrown in.
** Dwayne's line about having a degree from [=VermTech=] was improvised by Thomas Hayden Church (the original line was simply "Are you a professional?").
* VoicesInOneRoom: A few actors recorded their lines together such as Eugene Levy and Catherine O'Hara as Lou and Penny.
* WhatCouldHaveBeen
** Creator/JimCarrey was originally going to voice RJ.
** Creator/GeneWilder was approached for a role, but he turned it down and the character was dropped.
** Ben Folds originally wrote "Family Of Me" to begin with the line "Oh, I'm an asshole," which the suits vetoed (after they [[ActuallyPrettyFunny picked themselves off the floor laughing]], of course).
** Some of the fictional brand names were changed prior to release. One example is that Spuddie's potato chips (the BrandX version of Pringles) used to be referred to as 'Jingles', where the logo was the Pringles logo with a court jester's cap.
** The character designs were originally going to be much broader and graphic, a la ''WesternAnimation/{{Madagascar}}'', but when live animals were brought to the studio for reference, the designers saw just how cute they were and redesigned them as such.
** Rather than get chased by a rottweiler, Verne was going to get swallowed by a poodle named Waffles, and the gang would have to help him get out of the dog's stomach[[note]]This was to have been taken from an arc from the comic strip[[/note]]. Jeff Katzenberg vetoed it, saying he didn't want children with a fear of dogs to be frightened.
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