[[quoteright:350:http://static.tvtropes.org/pmwiki/pub/images/jackyounger2_9251.jpg]]

A 1996 film by Creator/FrancisFordCoppola starring Creator/RobinWilliams as a young boy named Jack who, due to an extremely rare disease that is never officially named, ages at four times the normal human rate. The film explores his unique situation, from being the only 10-year-old who can buy pornography, to being mistaken for his elementary school's principal, to all the medical problems he must face as his expedient aging continues.
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!!This film provides examples of:

* ActorAllusion: Robin Williams [[{{Film/Hook}} has played an adult Peter Pan]] (aka the boy who never grew up) with a son named Jack.
* ArtisticLicenseBiology: There ''is'' a rare disease called [[http://www.ehow.com/about_5423019_rapid-aging-disease-children.html?ref=fuel&utm_source=yahoo&utm_medium=ssp&utm_campaign=yssp_art Hutchinson-Gilford progeria syndrome]], in which a child from an early age exhibits rapid aging of the [[http://medtempus.com/wp-content/uploads/Fotosenero2007/Progeria.jpg body]], but not the mind. The longest they usually live is to their early 20s. The movie disease seems to match this pretty well, save for the looking like a normal adult part. Depending on your interpretation, this may be justified by RuleOfSymbolism and AnAesop about doing what you can with the time you have.
** A doctor ''does'' specifically mention progeria, and that it's not what Jack has, stating that Jack's condition is completely unprecedented.
* AwardBaitSong: [[http://www.youtube.com/watch?v=JledgopQg4A#t=1h48m09s Star]] by Bryan Adams.
* BarBrawl: Jack is mistaken for an adult, and gets into a fight.
* CoolTeacher: Jack's tutor.
* DrowningMySorrows: When Jack is depressed, he goes to the bar that Luis's mother mentioned to him. Jack is too young to drink in a bar, but because he looks old enough to be there, no one can tell the difference.
* GoodParents: Given the situation and circumstances, Jack's parents are practically saints.
* HomeschooledKids: Jack is one intermittently; his parents want to protect him.
* HotForTeacher: Why ''not'' develop a crush? She's Music/JenniferLopez!
** PrecociousCrush: Jack doesn't realize that he is too young for her, and after his heart is broken, he has a heart attack.
* KiddieKid: Jack acts a few years younger than his age, probably due to his sheltered lifestyle.
** [[ZigzaggedTrope Zigzagged]] with his classmates. On one hand, [[KiddieKid they still believe in things like cooties]]. On the other hand, [[TroublingUnchildlikeBehavior they enjoy looking at pornography]].
* ManChild: Jack, [[CaptainObvious of course]].
* MoodWhiplash: Is both something of a fun kid-friendly comedy and an emotional drama.
* NeverTrustATrailer: It was pretty much marketed as ''Film/{{Big}}'' [-[[RecycledINSPACE WITH]] [[Creator/RobinWilliams ROBIN WILLIAMS!]]-].
* NotAllowedToGrowUp: Completely averted; Jack can't help but grow up.
* ProtagonistTitle
* RapidAging: At a ratio of 4:1, most of the movie showing Jack at age 10 with the body of a 40-year-old.
* ShrinkingViolet: Jack, when he first goes to school.
* VisualPun: The pair of females sitting making derogatory comments about Jack's mother's weight at the start of the film are dressed as catgirls... they're being catty.
* YoungerThanTheyLook
* ZergRush: Jack's schoolmates approach his house in waves, asking his mother to let him out to play.
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