Littlefoot's Adventures of The Nightmare Before Christmas is the first Land Before Time/Tim Burton film planned to be re-edited by Yru17. It is planned to be shown on YouTube and Vimeo after Littlefoot's Adventures of The Black Cauldron.
Halloween Town is a dream world filled with dark creatures such as deformed monsters, ghosts, ghouls, goblins, vampires, werewolves and witches. The Pumpkin King, named Jack Skellington, leads them in a frightful celebration every Halloween, but he has grown tired of the same routine year after year. Wandering in the forest outside the town center with his ghost dog, Zero, he finds a cluster of trees each with a door which represents a certain annual holiday. Jack is drawn to the tree with the Christmas tree-shaped door and opens it which leads to a portal to "Christmas Town". Impressed by the feeling and style of Christmas, Jack presents his findings of the holiday to the Halloween Town residents. They fail to grasp his meaning and compare everything he says to their idea of Halloween. Jack undertakes several experiments to try to understand Christmas logically, but he becomes frustrated when he fails to understand. However, he realizes that just because he can't understand Christmas does not mean he still can't enjoy it; so he announces to Halloween Town that this year they will take over Christmas.Jack's obsession with Christmas leads him to usurp the role of Santa Claus, known to him as "Sandy Claws". Every resident is assigned a task, while Sally, a rag doll woman who was created by the town's mad scientist, has romantic feelings towards Jack. However, when she is alone, she has a premonition of Jack's Christmas ending badly. When she tries to warn Jack of the imminent disaster, he misinterprets her anxiety to mean that she is worried when given the responsibility to make Jack's Santa costume. Meanwhile, Jack assigns Lock, Shock and Barrel, a trio of mischievous children, to bring Santa to Halloween Town. When he arrives, Jack tells him of his plan that he will take over Christmas this year, much to Santa's protests. After this and against Jack's instructions, and largely for their amusement, the trio deliver Santa to Oogie Boogie, a gambling-addict bogeyman who plots to play a game with Santa's life at stake. Christmas Eve arrives and Jack prepares to embark into the sky on a coffin-like sleigh pulled by skeletal reindeer. Sally tries to stop him by releasing fog juice, but Jack is inspired by Zero's glowing nose and orders the ghost dog to lead the team. He begins to deliver presents to children around the world, but the gifts (shrunken heads, Christmas tree-eating snakes, etc.) only terrify the recipients. Jack is believed to be an impostor attempting to impersonate Santa. The army is alerted, and, using searchlights to spot him, they open fire on him with artillery. Jack believes at first that the shells are merely fireworks, set off to thank him; by the time he realizes the truth, it is too late. The sleigh is shot down and Jack is presumed dead by Halloween Town's citizens, but in fact he has survived the crash, landing in a cemetery. Although he is depressed by the failure of his plan and the damage it caused, he realizes that his Christmas adventure has helped him to rediscover his love for scaring people. Having come up with new ideas for next Halloween and wanting to "set things right", he rushes back to Halloween Town. Meanwhile, Sally attempts to free Santa, but fails and is also captured by Oogie. Jack slips into the Oogie's lair and frees both Santa and Sally just before Oogie can drop them into a fire pit. Jack then confronts Oogie, who sets off several lethal traps, which Jack nimbly avoids. Oogie tries to escape, but Jack uses a single loose thread hanging from the bogeyman's sewn rag structure to rip him open, exposing the bugs that he is made of. He falls apart, and most of his bugs fall into the fire pit. The last one is squashed by Santa, who then reprimands Jack before setting off to deliver his presents to the children of the world. Jack asks Sally how she got into Oogie's lair in the first place and he realises that she was trying to help Jack because she has feelings for him. When Jack and Sally return to Halloween Town, the citizens rejoice that Jack is alive. Moments later, Santa is seen in the sky, making snow fall over Halloween Town to show that there are no hard feelings between himself and Jack. The townspeople are confused by the snow at first, but soon begin to play happily in it. Jack follows Sally out into the graveyard after seeing the Doctor with his new creation. Jack and Sally sing a romantic song together and then share a passionate kiss on top of the spiral hill in the graveyard. Zero watches them from afar before flying into the night sky forming a bright star shape and ending the film.
- Simba, Nala, Timon, Pumbaa, Zazu, Stan Marsh, Kyle Broflovski, Eric Cartman, Kenny McCormick, Scooby-Doo, Shaggy Rogers, Fred Jones, Daphne Blake, Velma Dinkley, Genie, Bugs Bunny, Daffy Duck, Ttark, Woody Woodpecker, Hyp, Mutt, Nod, Pterano, Slimer, Stay Puft, Mickey Mouse, Donald Duck, Goofy, Johnny Test, Dukey, Susan Test, Mary Test, Hugh Test, Lila Test, Gumball Watterson, Darwin Watterson, Richard Watterson, Nicole Watterson, Anais Watterson, Pete, Achmed the Dead Terrorist, Ozzy and Strut, Rinkus and Sierra, Red Claw, and Screech and Thud guest star in this film.
- The only reason Scooby-Doo and the gang guest star in this film is because this takes place in Halloween Town and every mystery they solve involves a monster.
- This is the only Land Before Time crossover with a 1990's Disney animated theatrical film that guest stars Timon and Pumbaa alongside Simba and Nala. This is because Simba and Nala are guest starring without Timon and Pumbaa in The Land Before Time/Toy Story films (as Timon and Pumbaa are the only members of the Jungle Adventure Crew in The Lion King/Toy Story films) and Littlefoot's Adventures of A Bug's Life (as Timon and Pumbaa are the only members of the Jungle Adventure Crew in Timon and Pumbaa's Adventures of A Bug's Life). The film is also one of a few Land Before Time/Disney crossover films guest starring Timon and Pumbaa alongside Simba and Nala.
- The only members of the Jungle Adventure Crew in this film are Simba, Nala, Timon, Pumbaa, and Genie, while King Julien, Maurice, Mort, Terk, Tantor, Louis, Sebastian, King Louie, Fu Dog, Rutt and Tuke, and Roger Rabbit will be in SpongeBob and Friends Face The Nightmare Before Christmas.
- Simba, Timon, and Pumbaa have faced Achmed the Dead Terrorist before in Simba, Timon, and Pumbaa's Adventures of Aladdin and only Timon and Pumbaa faced Achmed again in Simba, Timon, and Pumbaa's Adventures of The Return of Jafar, as Achmed quit his job as Jafar's henchman during his arguement with Iago while Simba was falsely arrested with Aladdin by The Sultan's Guards for the "murder" of The Sultan.
- This is the first time Achmed the Dead Terrorist has ever guest starred in a Land Before Time crossover film; he previously guest starred in Simba, Timon, and Pumbaa's Adventures of Aladdin and Simba, Timon, and Pumbaa's Adventures of The Return of Jafar and will guest star in Pooh's Adventures of Stand by Me.
- This film marks the first time Littlefoot and his friends face Achmed the Dead Terrorist.
- Like both BowserMovies1989 and DisneyAnimeManiac's versions of Pooh's Adventures of The Nightmare Before Christmas, this is an NTSC film with NTSC bits from The Land Before Time films, The Lion King films, South Park: Bigger, Longer & Uncut, the Scooby-Doo films, the Aladdin films, the Mickey Mouse films, A Goofy Movie, An Extremely Goofy Movie, and the Looney Tunes films.
- Like in DisneyDaniel93's film Ash's Adventures of The Nightmare Before Christmas (in which Ash and Pikachu followed Jack into the woods while Misty, Togepi, and Brock stayed in Halloween Town at the beginning), Littlefoot, Ducky, Petrie, Chomper, Guido, Timon, Pumbaa, Zazu, Kyle, Cartman, Scooby-Doo, Shaggy, Genie, Mickey, Goofy, Johnny, Dukey, Gumball and Darwin will follow Jack into the woods while Cera, Spike, Ruby, Simba, Nala, Stan, Kenny, Fred, Daphne, Velma, Bugs, Daffy, Ttark, Woody, Hyp, Mutt, Nod, Pterano, Slimer, Stay Puft, Donald, Susan, Mary, Hugh, Lila, Richard, Nicole and Anais will stay in Halloween Town at the beginning of this film.
- Aladdin was released on home video in 1993, the same year The Nightmare Before Christmas was released in theaters.
- The Lion King was released in theaters in 1994, the same year The Nightmare Before Christmas was first released on home video and both The Land Before Time II: The Great Valley Adventure and The Return of Jafar were released on directly to home video.