[[quoteright:300:http://static.tvtropes.org/pmwiki/pub/images/CheaperByTheDozen_346.jpg]]
[[caption-width-right:300:]]
->''"Sarah, your suspension from lacrosse for excessive force has been lifted, so you're going today... Henry, you have band practice, all right? I cleaned your clarinet. Please don't play with your food in your mouth again. Kim and Jessica, your teacher called and has made a request that you do not correct her in front of the class. Mike, you have show-and-tell today. And please, honey, remember that body parts do not count. Kyle and Nigel, you have a dentist appointment at 3:00, so you're going to work with Dad."''
-->-- Kate Baker (bear in mind this covers barely half the kids)

2003 film starring Creator/SteveMartin about him, his wife and their twelve kids. Count 'em, ''twelve''.

VeryLooselyBasedOnATrueStory, in that there was a [[Literature/CheaperByTheDozen 1948 book]] and 1950 FilmOfTheBook also called ''Cheaper by the Dozen'' which had a family with twelve kids in it. The [[Literature/CheaperByTheDozen original book]] is set in the 1920s and was written by Frank Gilbreth Jr. and Ernestine Gilbreth Carey. That's the only similarity. The Gilbreth children were: Anne, Mary (1906-1912), Ernestine, Martha, Frank Jr., William, Lillian, Frederick, Daniel, John, Robert and Jane. The authors wrote a sequel called ''Belles on Their Toes'' which follows the family after Frank Gilbreth, Sr's death. Mrs. Lillian Gilbreth (the mother) served as an adviser to five American presidents (Hoover, Roosevelt, Eisenhower, Kennedy, and Johnson); she and her husband are part of a permanent exhibit at the Smithsonian Institution. The last surviving child, Frederick, passed away in December of 2015.

Plotwise, the family is happy, but packs up and moves an unspecified distance from a small town into the suburbs of Chicago so the Dad can pick up his dream job coaching his old college [[UsefulNotes/AmericanFootball football]] team. The kids are variously disappointed by this, but grudgingly go along with it anyway. Having left home, the family gets another shock - Mom's gonna get her book published! Mom goes on a book tour, leaving the family in her husband's hands for a few days. HilarityEnsues as total chaos erupts. One kid runs away, the family chases him down (leading to a nice YouAreNotAlone moment), Dad realizes what his job has done to his kids and both he and his wife resolve to put family first.

A generally inoffensive family comedy.

A sequel was released, running with basically the same premise but a different plot, in which the family goes to a lake for a vacation but run into an old rival of Dad's---who has a big family of his own. Naturally, everyone else ends up hitting it off well, which ultimately leads out to some fallout with the fathers and their families, but they make up in time to win a contest. Meanwhile, the oldest daughter gives birth to her first child.

As inoffensive as the former, but performed much poorer at the box office.

The films play straight pretty much every trope listed under FamilyTropes, SiblingTropes and TheParentTrope. As a result of this and rather poor writing, many audiences disdain them, but they've also gained enough of a following to provide a character page.

----
!!This film provides examples of:

* AbortedArc: Charles's conflict with the city kids in the first film.
* ABoyAndHisX: Beans the frog is Mark's best friend. [[spoiler: The fact that nobody seems to care when he dies is what causes Mark to run away.]]
* AccidentalMisnaming: Tom gets Mark's name wrong twice throughout the film. Both times, Mark corrects him. The second time, Tom corrects himself after getting it wrong.
-->'''Mark''': Have you seen my frog, Dad?
-->'''Tom''': Sorry, Charlie. Nigel. Kyle.
-->'''Mark''': It's Mark.
-->'''Tom''': I knew that.
* ActuallyPrettyFunny: "You soaked his underpants in meat. That is so ''wrong''. Funny! But ''wrong.''"
* AdoptionDiss: Mark's nickname of "Fedex" is used by his siblings to imply this.
* {{Adorkable}}: Hank.
* BigBrotherInstinct: The kids have this for each other. When Jake, Jessica, Mike and Kim find out Mark is being bullied at school, they meet the bullies and give them some LaserGuidedKarma. Subverted in this case though, as Jake is the only one of this group who is older than Mark.
* BigFancyHouse: The Bakers' new home after they move house early on in the film.
* BookEnds: The film starts with Kate listing negative or neutral things the family associates with the number twelve, and the film ends with her listing [[TriumphantReprise positive things]] the family associates with number twelve.
* BrattyHalfpint: Sarah. Especially when she's torturing Lorraine.
* CallingTheOldManOut: Tom gets this from Charlie [[spoiler:after Charlie is kicked off the football team due to being bullied.]] At the end of it, Charlie warns Tom that once he graduates, he's leaving.
* ChildHater: Hank. He flat out calls Nora's siblings monsters. (This was after they set his pants on fire.)
* ChildProdigy: Kim and Jessica are very brainy for their age.
* EnfanteTerrible: Again, Sarah.
* ExiledToTheCouch: Implied. Before Mark is revealed by Kate to have run away, Kate tells Tom "Feel free to sleep on the couch". Tom replies "You read my mind", implying he was going to anyway.
* FoodAndAnimalAttraction: The kids prank the Nora's boyfriend by dipping his underclothes in meat and setting the family dog on him.
* {{Foreshadowing}}: A fairly obvious example in which Tom mentions in the first scene how the family could do with change---of which a lot, of course, ends up happening over the course of the film.
* HappilyMarried: Tom and Kate are still very much in love.
-->'''Tom''': Were you just checking me out?
-->'''Kate''': Maybe I was.
-->'''Tom''': Twelve kids later, and we still got the heat!
* InNameOnly: The only similarity it has with the book is that there are twelve kids.
* IronicEcho: In the same scene. After Kate tells Tina Mark has run away, Tina says that twelve is just too big a number of kids to have. Kate throws the insult back in her face at the end of the scene.
* ItsAllAboutMe: Hank, who is a self-absorbed model and actor who worries about what the Baker kids will do to him when he and Nora visit (to be honest, though, he is right to worry, after they set his pants on fire). Nora doesn't see him for what he is until Mark runs away and Hank doesn't care at all, preferring to watch a commercial of himself on TV instead of going to help.
* {{Jerkass}}:
** Hank ends up being this to a degree. See ItsAllAboutMe.
** Tina as well. It's pretty clear from the off that she doesn't like the Bakers because of how many kids they have and their parenting methods. She also seems a snob that fusses over Dylan and shows no sympathy to Kate when Mark has run away.
* JerkWithAHeartOfGold: Most of the kids, who pull pranks and don't care much when Mark's frog dies, but they still feel bad when he ran away, and so still see him as very much a brother and member of the family.
-->'''Jake''': Without you, we wouldn't be the twelve Bakers any more. We'd be like... eleven.
** Even Tom gets hints of this. He moves the family to Chicago even when none of the kids want to do it, just so he can pursue his dream job and look good in front of Shake (Charlie says later that Shake was a superstar in high school, whereas Tom was a loser, while he is CallingTheOldManOut), and becomes something of a workaholic so doesn't see the kids' side when they're either ignored or punished for fighting in school, but of course he still cares very much about the family and Kate and [[spoiler:eventually gives up the coaching job so he can get another job closer to home.]]
* LaserGuidedKarma: The bullies who knocked Mark's glasses off and pulled his hat down over his eyes get their comeuppance when Jake, Mike, Jessica and Kim find out and give them a taste of their own medicine, even if it results in them being punished for it.
* MajorInjuryUnderreaction: Dylan gets a injured by a grown man falling on him. It was still his best birthday ever.
* MassiveNumberedSiblings: The Baker clan has, well, a [[ExactlyWhatItSaysOnTheTin dozen]], seven sons (Charlie, Henry, Jake, Mark, Nigel and Kyle) and five daughters (Nora, Lorraine, Sarah, Jessica and Kim).
-->And yet, it doesn't make them a [[IncrediblyLamePun Baker's dozen]].
* MeaningfulEcho: Shortly after moving to Chicago, Mark draws a picture of their old house, which is his[[spoiler: "Favorite place in the world"]] After he runs away, the police tell Tom that they searched train and bus stations. He claims that his son wouldn't take a train or a bus. Nora then says that she always wanted to run away to Chicago, which was her[[spoiler: "Favorite place in the world"]]. This makes him realize exactly where Mark has gone.
* MsFanservice: Tina.
* MyBelovedSmother: Tina acts this way towards Dylan, who wanted "one perfect child", though it's implied Dylan wanted siblings.
* NeverMyFault: The kids consistently blame their father for their unhappiness and rarely fess up to the chaos they have created at the expense of each other and their parents. To be fair to them, the cause of some of their unhappiness ''is'' Tom's fault, though much of the chaos is squarely down to the kids.
* NoSympathy: Tina to Kate after Mark has run away, saying that twelve children is too many.
* OhCrap: The chandelier contractor after he falls off the ladder and sees the chandelier about to fall on top of him. [[RunningGag Again]].
* OutOfFocus: Most of the kids aside from Mark.
* PayEvilUntoEvil: The kids' pranks against Hank, who is more {{Jerkass}} than evil, but it still counts.
** Mark's bullies are given a dose of LaserGuidedKarma when Jake, Mike, Jessica and Kim find out what they did to Mark.
* RealityEnsues: Having twelve kids to divide your attention will mean that ''someone'' gets left out, and that they're hard for one adult to work with on their own.
* RuleOfPool: Invoked by the kids as the first part of the plan to get rid of Hank when he first arrives, resulting him in being tripped with a garden hose and landing in a paddling pool.
* RunningGag: The family's many attempts to install a new chandelier, usually with it falling atop the contractor.
* ScrewThisImOuttaHere: The camera crew setting up for a taping of the family on the Oprah Winfrey show when the family finally collapses into a full blown fight right in front of them. To add to their disbelief, the segment was to be called "One Big Happy Family".
-->'''Cameraman''': ''(Calling Oprah)'' No, you do ''not'' want to come down here. No, it's the ''farthest'' thing from a happy family.
** Charlie implies he will do this once he graduates, after CallingTheOldManOut.
* ShirtlessScene: Tom Welling's character briefly appears shirtless (unsurprisingly, given how often [[{{Superman}} his character]] on ''Series/{{Smallville}}'' did.)
* SingleMindedTwins: Both pairs of twins act quite similar to each other. It's more noticeable with Kyle and Nigel, since they're identical.
* {{Tomboy}}: Sarah.
* TheReasonYouSuckSpeech: Lorraine delivers one to her dad towards the middle of the film.
-->'''Lorraine''': You just used your own son as a vomit mop!
** Charles also gives one to him (towards the end of the film).
* TheThreeCertaintiesInLife: Hank notes, "All I'm saying is families are inevitable; they're like death or taxes."
* TheUnfavorite: Mark, a.k.a. "Fedex", at least in the eyes of his siblings.

----
!!The sequel provides examples of:

* CallBack: When he gets fed up with Jimmy, Tom asks Sarah if she's still "in touch with [her] dark talents." She sets up the same meat trick she pulled in the first movie.
* DemotedToExtra: Mark. He was ''the'' main character, aside from the parents, in the first movie, but is barely in this one.
* DisasterDominoes: The destruction of the clam bake. It all starts when Mark absentmindedly sets his backpack full of fireworks next to an open flame.
* TheGloriousWarOfSisterlyRivalry: Lorraine and Sarah have entered this even deeper than in the first film.
* ForgottenFallenFriend: Mark never even mentions his frog.
** It could be interpreted as Mark having moved on after losing Beans.
* HiddenDepths: Sarina is initially presented as Jimmy's DumbBlonde trophy wife, but she truly wants to be a good mother to her stepkids. When she sees the wedge that Jimmy's pressuring and obsession with upping Tom is driving between himself and his kids, she sets him straight.
* InstantBirthJustAddWater: Averted. Nora is giving hints all day that she's going into labor. She keeps her mouth shut though, so it won't ruin the contest for the family. [[spoiler: Until her water breaks in the middle of the final event and she finally has to admit she needs to go to the hospital.]] There's still a significant amount of time from then until the delivery, though.
* LotsOfLuggage: When Lorraine shows up at the cabin, Sarah keeps jabbing at her for her huge suitcase. "So is this one just for your makeup?"
* NauticalKnockout: This happens to Tom.
* PutOnABus: All the supporting cast.
* TrophyWife: Sarina, Jimmy's new wife of "six wonderful months."
* UglyGuyHotWife: Jimmy Murtaugh and his new trophy wife, Sarina.
* UnluckyExtra: The poor old man in the wheelchair. Every time he is on screen, he somehow gets pushed into the water. You think he would put on his parking brake, or have someone park him in a less precarious spot.
----