They drink, they smoke, they do drugs, they have sex, and sometimes they even kill people. And that's just by age 15.

The kid: Chloe Moretz/Mindy Macready aka Hit-Girl

The movies: Kick-Ass and Kick-Ass 2
Claim to infamy: How many 11-year-old female superheroes who swear like a trucker and use bayonets, butterfly knives and Barettas on bad guys had you seen on-screen before?
Best worst line: "Okay you c**ts, let's see what you can do now." (Kick-Ass)
Most "Oh no they didn’t!": Villain Red Mist's dad Frank beats the crap out of her and nearly kills her after she dispatches an entire team of henchman. (Kick-Ass)
Fact me: A line was cut from the first movie that implied Hit-Girl was doing cocaine out of a Hello Kitty bag.

The kids: Leo Fitzpatrick/Telly, Justin Pierce/Casper

The movie: Kids
Claim to infamy: Larry Clark’s tale of drugging, promiscuous teens was truthful to some, borderline pornographic to others; among its unsavory characters is 14-year-old Telly, a self-proclaimed "virgin surgeon" whose goal is to deflower as many girls as he could, some as young as 13. Did we mention he's HIV positive?
Best worst line: "Jesus Christ, what happened?"
Most "Oh no they didn’t!": Casper rapes HIV-positive teen Jenny (Chloe Sevigny) while she is passed out unconscious after a party.
Fact me: Most of the kids in the movie weren't actors, but teenage friends of 19-year-old writer Harmony Korine. Filmmakers released it (unrated to avoid the dreaded NC-17) right before the Child Pornography Prevention Act was signed, after which it might never have seen the light of day.

The kid: Linda Blair/Regan

The movie: The Exorcist
Claim to infamy: William Friedkin's horror classic shocked audiences with the filthy, sexualized language13-year-old Blair spewed as the demon Pazuzu. During the shoot, the actress was not restrained properly and got physically battered while thrown around the bedroom. She has said since that she was so young, she didn’t understand half of what she was doing or saying. She was protected by bodyguards against death threats for six months after release.
Best worst line: "Your mother sucks c*** in hell, Karras!"
Most "Oh no they didn’t!": Regan curses her mother while masturbating with a crucifix.
Fact me: Linda Blair's mother was quoted as saying she "thought it sounded like a fun part."

The kid: Jodie Foster/Iris

The movie: Taxi Driver
Claim to infamy: Jodie Foster was 13 playing a 12-year-old prostitute (studying with a real working girl to prep for the role) and was on set for the violent shootout at the end—although a stand-in performed the more sexual scenes and Foster was fully aware of the effects and makeup that made the finale only seem real.
Best worst line: "We better make it or Sport’ll get mad…. You wanna make it like--this? Don’t you wanna make it?"
Most "Oh no they didn’t!": Iris is just trying to do her job, unzipping potential Travis Bickle’s pants in a $10 fleabag motel room.
Fact me: Jodie’s 19-year-old sister Connie was her body double.

The kid: Ellen Page/Hayley

The movie: Hard Candy
Claim to infamy: Age 18 playing 14, Page as shy, seemingly innocent Hayley flirts with a 30-something pedophile online, then flips a bitch (literally) when he invites her to his place and proceeds to mentally and physically torture him despite his pleas of innocence. NBC’s To Catch a Predator was never like this.
Best worst line: "I am every little girl you ever watched, touched, hurt, screwed, killed."
Most "Oh no they didn’t!": As he’s tied to a chair, Hayley strangles him unconscious, then lays him on a table naked and threatens imminent castration.
Fact me: China and Malaysia banned it.

The kid: Natalie Portman/Mathilda

The movie: Leon: The Professional
Claim to infamy: The original Hit-Girl with a gun in one hand and a stuffed bunny in the other, 12-year-old Mathilda (Portman was 13 when the film came out) wants Jean Reno’s hit man to get revenge on her family's killers. She gets drunk on champagne, confesses she loves him, and the creepy weirdness doesn’t stop there.
Best worst line: "I wanna kill those sons of bitches, and blow their f***ing heads off!"
Most "Oh no they didn’t!": Reno sets Mathilda up with a sniper rifle on a building rooftop, shows her the ropes, and tells her to "hit whoever." "Can we try with real bullets now?" she asks, after nailing a jogger with a blank.
Fact me: The European cut of this movie was so risqué some scenes (like the one of Reno walking in on her in the shower) were deleted and the movie retitled for us American prudes.

The kid: Dominique Swain/Lolita

The movie: Lolita
Claim to infamy: Adrian Lyne’s version of the forever controversial Nabokov novel came 35 years after Kubrick’s and was even more shocking, given Swain was barely 15 playing the nubile 14-year-old Delores Haze opposite Jeremy Irons' pervy pedo Humbert Humbert.
Best worst line: "Like that? You want more, don’t you?"
Most "Oh no they didn’t!": After Humbert picks her up from camp, the gum-snapping Lolita accusing him of not kissing her hello, causing him to run off the dirt road. She climbs into his lap and starts laying it on him, just at the moment a cop cruises by.
Fact me: The film was rejected by nearly every American distributor and almost didn't get made.

The kid: Brooke Shields/Violet

The movie: Pretty Baby
Claim to infamy: Shields, a flat-chested and prepubescent 12, played a prostitute who eventually marries a much older photographer. Shields’ nude scenes (no body double) caused international furor and landed director Louis Malle the reputation of being somewhere between Humbert Humbert and Roman Polanski.
Best worst line: "I want you to be my lover… I won’t even charge you." Runner-up: "Get me some cocoa. And a bottle of brandy!"
Most "Oh no they didn’t!": The older prostitutes tell Violet that her patron is buying her as a virgin, so she should behave like she’s being raped but act like it feels good and "touch him down there like it’s accidental."
Fact me: Shields tried out for the role that went to Foster in Taxi Driver.

The kid: Macauley Culkin/Henry

The movie: The Good Son
Claim to infamy: In this variation of 1956's The Bad Seed, Culkin was cast against type as a homicidal preteen with inclinations toward killing his siblings and using crossbows on the neighborhood pets.
Best worst line: "Hey, Mark... don't f*** with me."
Most "Oh no they didn’t!": Henry causes a massive 10-car pileup on the freeway by dropping a dummy he likes to call "Mr. Highway" from the overpass to see how many accidents he can cause.
Fact me: Rather than dissuading then-13 Macauley from the horrific role, his dad threatened if he didn't get it, Culkin wouldn't appear in Home Alone 2.

The kid: Nikki Reed/Evie

The movie: Thirteen
Claim to infamy: Co-stars Nikki Reed and Evan Rachel Wood were both 14 when they filmed this movie about girls gone wild.
Best worst line: "Hey boys! My friend wants to suck your d***!"
Most "Oh no they didn’t!": As Evie and her friend (Evan Rachel Wood) are getting high, they punch each other in the face as hard as they can, Evie sending her pal careening face first into a table.
Fact me: At 15, Reed co-wrote and starred in the movie loosely based on her own life at age 12-13, intending it to be a comedy—one involving lying, shoplifting, cocaine, huffing, self-mutilation, girl-on-girl makeout sessions and oral sex. Hardy har!

Go on, you know you want 'em...get your tickets to Kick-Ass 2.