* AccentAdaptation: In the Swedish dub, Mr. And Mrs. Tweedy speak in a Scanian accent. [[note]] An accent in Southern Sweden which has similarities to Danish pronounciations. [[/note]] And Mac, to correspond to the Scottish accent, speaks heavily in an East Gothland accent (Östergötland). However, it wasn't enough to make her unintellegible, so she also speaks SesquipedalianLoquaciousness wise, and fast.
** Something similar happens with the Dutch dub, giving Mac a Frisian accent, and compensating by letting her speak fast.
* ActorAllusion: Rocky yells "[[Film/{{Braveheart}} FREEDOOOOOOOOM!]]" when he first flies into the farm. Also, one of the chickens says "I'm not even certain he was American.", a reference to the fact that many people, even in the UK, think Mel Gibson is Australian (he was born in the US, but moved to Australia at age 12). Another ''Braveheart'' allusion occurs when asked where he's from:
-->'''Rocky''': Oh, just a little place I call the land of the free and the home of the brave...
-->'''Mac''': Scotland!
-->'''Rocky''': No! America!
** Bunty, at one point, scoffs that she didn't even believe Rocky was American. Many assumed the same about Gibson, who was America-born but spent his adolescence and teens in Australia.
** To top it off, there's also a RunningGag with Rocky finding Mac's Scottish accent incomprehensible.
-->'''Rocky''': Was that English?
** Twice in the case of Mrs Tweedy. She's voiced by Miranda Richardson who already played [[Film/SleepyHollow two evil women specialized]] [[BlackAdder in beheading.]]
* DeletedScene: One scene that was cut was how Rocky stole a tricycle from a child. In the theatrical release, this causes some "huh?" as to ''how'' Rocky was riding a tricycle in the ''first'' place. This was to be a ShoutOut to [[Film/TheGreatEscape The Great Escape]], where Virgil Hilts steals a motorcycle from a Nazi soldier.
* DoingItForTheArt
* ExecutiveMeddling: Creator/DreamWorks and composer HansZimmer (who heads the Dreamworks music department) forced director NickPark to drop an already-recorded musical score by WallaceAndGromit composer Julian Nott because Zimmer decided his people should do the score (Zimmer has a history of doing this). This was one of many reasons why Aardman would leave Creator/DreamWorks in 2006 to go to Sony.[[note]]To be fair, however, the score that was released was ''brilliant''.[[/note]]
** A more justified example: in England, what American's refer to as "flashlights" are called "torches." Being aware that [[ViewersAreMorons this would confuse their predominantly American audience]], {{DreamWorks}} insisted that a quick shot of Mr. Tweedy coming out of his house with a flashlight be added assure viewers that he was not, in fact, going to get [[IThoughtYouMeant a large, flaming stick]].
* HeyItsThatVoice:
** Ginger is [[AbsolutelyFabulous Saffron]] and [[Film/PrideAndPrejudice Lydia]]
** TeamDad Fowler is [[Film/PrideAndPrejudice Mr Bennett]]
** Mrs Tweedy also played another [[BlackAdder crazy woman obsessed with beheading]]
** Nick is [[HarryPotter Peter Pettigrew]]
** Bunty is [[HarryPotter Professor Umbridge]], although you'd never recognise her.
** In the Norwegian dub, Ginger is voiced by minor TV star Suzanne Paalgard. Rocky is [[TheRoadToElDorado Tulio]].
* TheMerch: Creator/PlaymatesToys had a ''Chicken Run'' toyline when the movie came out; the [[http://www.amazon.com/Tweedys-Chicken-Thrower-Vehicles-Action/dp/B001JB8TX4 Pie Machine]] was a re-deco of an [[http://www.tmnttoys.com/89vehicles/pizzathrower/index.html earlier]] ''Franchise/TeenageMutantNinjaTurtles'' toy.
* WhatCouldHaveBeen: This film has a lot of them:
** In an early version of the film, Ginger was going to have a little brother named Nobby. He was [[IncrediblyLamePun axed]] in an attempt to make the film "less cute."
*** Also, one of the chicken characters was originally a pigeon.
*** Babs is a combination of two characters, one of which was named Edwina. The filmmakers later reused the name Edwina for the chicken whose head gets lopped off, as an inside joke.
** Fowler was originally a ''drunkard'' who believed himself to be useless until Ginger convinces him otherwise.
** At one point, the movie had a DeusExMachina ending in which the chickens suddenly gained the ability to fly after the crate breaks apart in mid-air. The filmmakers decided it was too far-fetched.
** For a while, the filmmakers considered the idea of having '''Mrs.''' Tweedy be the one attacked and tied up by the chickens in the climax.
** There was animation done of Ginger and Rocky's BigDamnKiss where the beak contact was clearly visible. It looked, as the directors said in the commentary, "like two suction cups stuck together."
*** [[http://4.bp.blogspot.com/-adyU49TFrxA/Tu9zyxJLxgI/AAAAAAAADEU/kNAf8CxtoG4/s1600/wa11.jpg Maybe Don Rosa should have given them some lessons.]]
** Another idea for the ending involved a SequelHook in which the audience was shown that a second chicken farm is being constructed near the island. It was dropped because Aardman wasn't sure if a sequel would ever be made.
** Instead of the door falling on Mrs. Tweedy on its own, after Mr. Tweedy said "I told you they was organised" Mrs. Tweedy was originally going to go on a rant and insult him, causing Mr. Tweedy to get angry and push the door on her. They cut this because it made Mr. Tweedy look too mean. Though in the final film you can still see his arm moving back to his side for a second. You can also see Mrs. Tweedy about to explode with her rant.
** Rocky had a wattle on his neck that was removed during production for whatever reason.
** During the montage of the chickens trying to fly, there were to be a group of pigeons watching them from a power line and mocking them at the same time. These characters were cut from the final film, but their lines were given to the rats Nick and Fetcher, who stick around and watch in the former's stead.
** At one point, Rocky and Ginger were going to surf out of the pie machine on a giant tidal wave of gravy as a result of their sabotage instead of just running out. Although this idea was dropped, the idea of a giant gravy explosion was saved for the climax, when the pie machine was destroyed.
** There was to be a scene inside the pie machine where Rocky saw a skeleton of a dead chicken and quipped, “They bought the huge machine, how cheap is that?”
** Initially, when it was revealed that Rocky never could fly because he was fired out of a cannon, there was to be a flashback that showed Rocky being stuffed into a cannon at the circus. However, the producers decided to [[DeletedScene cut this out of the movie]] so that they could shorten it and came up with the idea of Rocky's poster being torn in half and then pieced back together later on.
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