Role Association/Film JK

J

 * J Edgar: Jack Dawson is the director of the FBI and The Winklevossi is his "heterosexual" "life-partner".
 * Jacob's Ladder: Nate Ford is suffering from frightening delusions while trying to maintain a relationship with Mirage. George Costanza is also here.
 * Various James Bond films: Super Spy Dr. Jones Sr. / Neville Sinclair / Lord Brett Sinclair / Sam / Lord Azreal gets his orders from an airy lady who is the successor of the Rocky Horror Picture Show narrator and his gadgets from King Harold. Among his allies are Mr. Blonde, a STARS commando (who was referred to as "Black Bond" in the commentary by Milla Jovovitch), and Hagrid. His/their various loves include Dr. Quinn, Medicine Woman, Yu Shu-Lien, and Storm and Jean Gray. His adversaries range from Baron Bomburst to Dracula.
 * Skyfall: Selene, Anton Chigurh, Voldemort, and Narcissa Malfoy are up to something that'll be revealed in 2012.
 * Jane Eyre (2011): Alice Kingsleigh falls for Lt. Archie Lensherr.
 * The Jerk: Neil Page is a dim-witted white man who leaves his adoptive Southern black family to make his mark on the world, working for Rabbi Krustofsky and winning the heart of Rita the cat along the way.
 * John Adams: HBO TV movie starring The X's as the president and his wife.
 * John Carter of Mars: Gambit finds himself on Mars along with Kayla Silverfox, the (first) Green Goblin, and Sand Man.
 * Jonah Hex: George W. Bush and Mikaela star in a film based on a character you might remember from the Wild Wild West-style episode of Batman: The Animated Series.
 * Journey to The Center of The Earth: Rick O'Connell, his son Peeta, and a female friend go on an adventure. Appropriately, in the second movie Rick is replaced by The Scorpion King.
 * The Joy Luck Club: Dr. Mulan is one of four Chinese/American mother-daughter pairs; she learns about her deceased mother as well as.
 * Judge Dredd: Rambo is Judge, Jury, and Executioner.
 * Dredd: Eomir Vaako is Judge, Jury, and Executioner with constant Mask Power (thank god).
 * Julie and Julia: Half Based-On-A-True-Blog and half Biopic, the story follows Giselle's year of cooking while corresponding with Felicity Fox's rise in the cooking world with the support of her husband, a child rapist/murderer and her sister an evil cheerleading coach.
 * Jumanji: The Genie helps Sally Carrera, Claudia, and Miles "Tails" Prower defeat Sealed Evil in a Can while J. Bruce Ismay tries to kill them.
 * Jungle Cruise: Buzz Lightyear takes Woody and his family on an adventure.
 * The Jungle Book (1994 version): David Kawena is an adult Mowgli, who after years of living in the wild, finds himself back in civilization, and reunited with Queen Gorgo, the daughter of British colonel Vasili Borodin. David was attracted to Gorgo as a child, however the snide British soldier Westley is hoping to win her heart too. Also stars Basil Fawlty as a linguist who teaches David to speak English, and Dr. Jekyll as Westley's colleague.
 * Juno: Kitty Pryde gets pregnant by George Michael Bluth, much to the chagrin of her father, a white-supremacist newspaper editor and stepmother, C.J. Cregg. She arranges to have the child adopted by Sidney Bristow and George Micheal's dad (who turns out to be a creepy Man Child (Man Teenager?))
 * Jurassic Park: Seth Brundle and Dr. Weir and his assistant Ruth are invited to evaluate a dinosaur theme park. Unfortunately, park computer engineer Newman has his own plans which endangers everyone else's lives.
 * The Lost World: Jurassic Park: Seth Brundle is sent to an(other) island inhabited by dinosaurs in order to rescue Clarice Starling 2.0.
 * Jurassic Park III: Dr. Weir is tricked into going to the same island as the second movie by a nefarious car dealer and his wife, er, the former real-life Mrs. Mulder to help find their son... unfortunately he's never been on the second island.
 * Just Friends: Deadpool used to be overweight, with a hopeless crush on Jules Harbor. Flash forward ten years, where he, after dropping the weight, has to escort moronic pop star Cindy Campbell to a gig, and ends up landing in his old hometown. But he finds a bit of a rival in Oz.'
 * Just Go with It: Happy Gilmore convinces Rachel Green to act as his wife to impress a lady who digs married men.

K

 * Kate and Leopold: Anastasia falls for handsome time traveler Wolverine.
 * The Kids Are All Right: Clarice Starling 2.0, her wife Carolyn Burnham, and their level-headed kids Alice and Jesse are living an idyllic life in LA until their children's bio-dad The Incredible Hulk 3.0 starts interfering in their lives.
 * Kill Bill: Poison Ivy goes on a Roaring Rampage of Revenge against the ones who put her in a coma: Ling Woo, Tina Turner, Mr. Blonde, a mermaid, and finally a Shaolin monk, meeting with a legendary ninja and possibly The Most Interesting Man In The World for info.
 * Don't mistake Vivica Fox for Angela Bassett, who played Tina Turner.
 * Killer Elite: Frank Martin and Vito Corelene are out to kill Smith.
 * Killers: One of those two dudes is an ex-CIA assassin married to Dr. Izzy.
 * The King's Speech: After Mr. Darcy's brain-damaged brother leaves his throne to marry American divorcee Dr. Eleanor O'Hara, he turns to Barbossa to help his stutter. Bellatrix Lovett is Darcy's wife, Wormtail is the future Prime Minister and A Roman Emperor is the Archbishop. Darcy's parents are Dumbledore and Hera.
 * The Kingdom: Michael Bluth gets kidnapped by terrorists, and it's up to Sydney Bristow, Col. Frank Fitts and Ray Charles to save him.
 * Kiss Kiss Bang Bang: Ethan Hunt's wife is in trouble and only Iron Man and Batman can help her!
 * Kick-Ass: Tom Hansen's precocious little sister is quite the Little Miss Mother-Fucking Badass Tyke Bomb (makes sense, since her daddy is the Ghost Rider); McLovin' is the Big Bad. John Lennon is a nerd who wants to be a superhero.
 * A Knight's Tale: The Joker makes friends with an affable hallucination while trying to prove himself as a knight.
 * Knocked Up: Izzy gets pregnant by a Mantis-Mouse-Blob!
 * The Kung Fu Karate Kid 2010 remake: Master Monkey teaches Kung Fu to the son of Agent Jay IN CHINA! (the "Karate" part is due to the kid's dad being a martial artist).