2011 French film directed by Céline Sciamma (who previously directed ''Water Lilies'').

Ten year old French girl Laure is used to moving around. She's moving once again, but this time her parents plan on staying in a suburb for a while.

She meets Lisa, a girl her age, who mistakes her for a boy. Laure introduces herself to Lisa and the local children as "Mickaël". She keeps this secret from her parents, and it is summer so she hasn't ran into any problems with school yet. She also develops a mutual crush on Lisa.

Not to be confused with ''Film/TommyBoy''.
!!This movie contains examples of:

* AnnoyingYoungerSibling: Jeanne, though a mild example.
* AttractiveBentGender: Lisa falls for "MickaŽl", who is actually a girl.
* BerserkButton: Don't mess with Jeanne. Laure will take you down.
* {{Bifauxnen}}: Laure easily passes as a boy, and an attractive one for Lisa.
* BigBrotherInstinct: Laure has one toward her little sister, who says she used to beat up anyone who teased her and that their old neighborhood was scared of her. She could have been exaggerating, but Laure gets into a fight with a boy who pushed her sister and wins.
* BittersweetEnding: [[spoiler:[[HumiliationConga Laure is forced to be seen as a girl again, the kids humiliate her, and Lisa seems to have broken off her romance with her]]]]. But it seems Laure and Lisa are still friends.
* BlindfoldedTrip: When Lisa leads Mickael into the forest for their FirstKiss.
* BoyishShortHair: Laure has very short hair in contrast to Jeanne and Lisa who have longer hair and are more girly.
* {{Bookends}}: Near the beginning Laure introduces herself as "Mickael" and at the end she introduces herself again as Laure.
* ButchLesbian: Laure is as tomboyish as it gets, and she surely gets along very well with the idea of dating Lisa.
* CosmeticCatastrophe: Downplayed. Lisa puts on quite some makeup on Mickael.
* ExactEavesDropping: Towards the end in the forest, Laure comes in at the right time to overhear the other boy telling the group about her being a girl.
* FreeRangeChildren: The kids are allowed to play outside (even on the lake) without parental supervision.
* FirstKiss: Lisa drags "Mickael" to a secluded area, and kisses her.
* HumiliationConga: [[spoiler: Poor Laure goes through this. Her mom makes her appear as a girl to a boy she beat up and to her girlfriend, she is humiliated by the other kids and Lisa breaks up with her.]]
* KidsAreCruel: [[spoiler: The boys force Laure to take off her short pants towards the end.]]
* NoseNuggets: One of the topics when the kids play "truth or dare".
* OneOfTheBoys: Laure not only gets along good with the boys but she even passes as one.
* OutdoorsyGal: Laure loves spending time outside playing football.
* OutfitRipSexCheck: [[spoiler:The boys have Lisa check to see what Laure's sex is]].
* PuppyLove: Laure and Lisa are "dating". They're also preteens.
* RecursiveCrossdressing: When Lisa and "Mickael" play with some girly makeup after the dance.
* SecretKeeper: Laure makes Jeanne promise not to tell their parents about the Mickael thing. she also tells it to her little brother when he was in the womb by whispering to her mother's stomach.
* SliceOfLife: Many scenes depicting children at play.
* SpiritualSuccessor: ''Tomboy'' is sometimes considered as a GenderFlip of ''Film/MaVieEnRose'', even though it doesn't clearly deal with the {{transgender}} thing unlike the latter.
* StockScream: None other than the ''Wilhelm Scream''.
* TimeSkip: The last scene skips a couple of weeks ahead of the InternalReveal. The mother has given birth to a boy and Laure is already in school.
* {{Tomboy}}: ExactlyWhatItSaysOnTheTin, and taken UpToEleven (not only does Laure behave like a boy, she ''passes as a boy'').
* TomboyAndGirlyGirl: Laure and Jeanne, Laure and Lisa.
* TruthInTelevision: Many of the behaviors in the movie are rather accurate, right down to [[spoiler:kids trying to "find out" a person's sex by taking off their pants]]. Director Céline Sciamma wanted the movie to be as naturalistic as possible.
* UnsettlingGenderReveal: [[spoiler: Near the very end of the movie, Laure's mom forces Laure to wear a dress and go to apologize to the boy she beat up for pushing Jeanne. She also is forced to go to her girlfriend's house to apologize.]]