In Disney’s “Tangled”, Rapunzel’s crib mobile shown in the beginning of the movie foreshadows scenes and characters we see throughout the rest of the film.

Sultan is the name of the dog that was transformed into a footstool in “Beauty and the Beast”. Another word for “footstool” is “ottoman”. The ruler of the Ottoman Empire was called a Sultan.

In Finding Dory (2016), Dory passes by a sunken Volkswagen Beetle at the bottom of the ocean. This is a nod to the old Disney movie Herbie Goes Bananas (1980), in which one of the VW bugs that played Herbie was thrown into the ocean during filming and never got retrieved.

Frozen (2013) features accurate Norse runes. Disney consulted with Jack Crawford, a leading international expert in Old Norse. Crawford made several minor plot changes and coached voice actor Robert Pine, who played the bishop in the coronation scene and delivered a speech in the Norse language.

In Zootopia, Duke Weaselton is selling knock-off DVD's. One of which is Meowana. A hidden Easter egg for Disneys next big movie release, Moana.

In "Zootopia" (2016), during the chase scene in Little Rodentia, they pass by a billboard for "Thigmo Taxis". In Biology, thigmotaxis is the movement towards or away from physical stimulus, and has been extensively studied in rodents.

In Disney/Pixar's "Inside Out" (2015), the playing cards that are shown in Riley's Imagination Land include her family, not the typical card faces. Her father is the king, her mother the queen, and herself the jack (with the "J" being changed to an "R" for "Riley").

In the movie Wreck It Ralph The high score on Fix-It Felix Jr. is 120501, a hidden reference to December, 05, 1901, Walt Disney's birthday.

In "Ralph Breaks The Internet" (2018) the woman on the "Sassy Housewife" online ad is Aunt Cass from Big Hero 6.

In 'The Little Mermaid' (1989) Ursula uses a butterfly (a symbol of transformation and mimicry) in the potion to transform herself into 'Vanessa' - which is a genus of butterfly.

In Disney's Tron, the main characters fly over a digital landscape, including this familiar rodent-shaped lake.

In Beauty and the Beast (1991), you can see little skulls in his eyes as he falls to his death.

Among the many references in the princesses' loungewear scene in Ralph Breaks the Internet, Ariel's cutlery candlestick (and a small part of her box of thingamabobs) can be spotted on the table behind Aurora.
 

Disney's 1940 animated film Fantasia shows the dinosaurs dying off as the result of an intense drought. The theory of mass extinction as the result of an astroid strike wasn't proposed until 1980.

In Disney’s “Princess and the Frog” (2009), when Dr. Facilier is showing Prince Naveen his future the money pile on the tarot card is in the shape of a lily pad.

Saving Mr Banks (2013) references Disney’s censorship of the smoking habits of Walt Disney. In real life, they airbrushed cigarettes out of his hands in many old photos, leaving him with an odd two-finger salute.

In Disney•Pixar’s Ratatouille (2007) Anton Ego’s typewriter resembles a skull and his office a coffin.

In Disney's Beauty and the Beast (1991) Belle was willing to be locked up for the rest of her life with the beast to save her father, but unwilling to be stuck with Gaston for the rest of her life to save her father.

Charles Muntz, the villain in Pixar’s “Up,” is named after real life Disney villain Charles Mintz, who stole Walt Disney’s first creation, Oswald the Lucky Rabbit.

In Disney/Pixar's Up(2009) Carl and Ellie are shown hammering nails and sawing wood on their wedding day. This is a once popular euphemism cleverly disguised as innocent enthusiasm to fix their dream home.

In my favorite Disney film, "Treasure Planet", you can see Stitch plushie in Jim Hawkins' room.

In Space Jam, Daffy suggests the The Ducks as the team name. Bugs replies "What kind of Mickey Mouse organization would name their team The Ducks?" Referencing the Disney film The Mighty Ducks.

In Disney's "Ratatouille" (2007), Linguini has to hide Remy before his second day of work. He offers to hide him in his pants, revealing his briefs covered in The Incredibles logo.

Bolt (2008). The address on Bolt’s tag is for the Disney Animation Building.

In “The Hunchback of Notre Dame,” Frollo offers captured Gypsies silver coins for the location of Esmeralda. He asks 3 times, raising the price by 10 each time. On the 3rd time, he offers nothing. He would have otherwise offered them 30 silver pieces, the same price that bought Judas.

In Disney’s Coco, Miguel’s skeleton hands show little sign of use or age since he is a kid. However, Hector’s hands show wear and look potentially arthritic, since he was an adult when he died.

In Disney’s “The Lion King” Simba eats the bugs with his pinky up. This is a reference to his royal background and manors due to his father being the “king” of the jungle.

In Disney's Mulan (1998) Mushu flips the newspaper from left to right because traditional chinese text was written in columns going from right to left.

Jack Sparrow telling the bone bribing prisoners in 'Pirates Of The Caribbean' that the dog holding the cell keys is "never going to move" is an obvious but cheeky reference to the stationary audio-animatronic in the original Disneyland dark ride that hasn't moved since the attraction opened in 1967.

In Disney’s The Hunchback of Notre Dame (1996) during the song “Out There” you can see Belle walking with her book just like in the “Belle” scene in Beauty and the Beast. Both movies take place in France.

The Muses in Hercules (1997) during "I Won't Say (I'm in Love)" are depicted as busts that are arranged like the singing busts in Disney's Haunted Mansion Ride.

In Hunchback of Notre Dame, when Frollo turns to the hooded figures in "Hellfire", the light around him resembles a coffin.

In COCO (2017), the “Rivera Family of Shoemakers” started in 1921. The same year Walt Disney made his first animation.

In Disney's Atlantis: The Lost Empire (2001) the fish tank behind Prof. Whitmore contains Coelacanths which some describe as a living fossil.

In “Ralph Breaks the Internet” (2018), Oh My Disney is surrounded by cheap motels. This is exactly what happened to the real Disneyland shortly after its opening, leading Walt to purchase a large excess of land for his next project, Disney World.

Working on SNOW WHITE AND THE SEVEN DWARFS (1937), animator Ward Kimball nearly quit after his two main sequences (the dwarfs eating soup and building a bed for Snow White) were cut. Walt Disney convinced him to stay by giving him the character of Jiminy Cricket to animate in PINOCCHIO (1940).

In Disney’s Hercules (1997), Zeus tells Hercules that Pegasus has the brain of a bird. Pegasus then uses his feathers to emulate a peacock, which in Greek mythology was a sacred animal to Hera.

In Disney's "A Goofy Movie", The GoofFather, The Goofinator, and Pup Fiction too can be seen on the movie theater marquee.

Honey Lemon's 'purse' have a small periodic table of elements on it which makes her own 'Elephant's toothpaste' using different elements [Big Hero 6].

In Zootopia (2016), you can see a sign that says “Tujunga”. This is a nod to a leaky warehouse that Disney employees had to work in while the main studio was being renovated.

In Disney’s new Mulan(2020) remake, the actress who announced Mulan to the emperor at the end is Ming-Na Wen (uncredited in this mvoie), the actress who voices Mulan in the 1998 animated version.

In Enchanted (2007) the troll that chases Giselle at the beginning of the movie is wearing a loin cloth made up of the peasant dresses from previous Disney Princesses.

Bravo and Echo, the two military planes from the Disney movie Planes (2013), wear Goose and Iceman's helmets from Top Gun (1986).

In Lilo and Stitch (2002), Disney+ has an alternative edited version where Lilo is hiding behind a pizza box instead of a dryer to satisfy safety concerns about children hiding in dryers.

In Saving Mr. Banks (2013), as Walt addresses PL Travers in his office prior to the premiere of Marry Poppins in 1964, a map of Florida is seen showing the initial interest of land that would eventually become Disney World.

In The Santa Clause (1994), Tim Allen quickly grabs and tries on a tool belt, in reference to his TV show Home Improvement (1991-1999). Both produced by Walt Disney Studios.

In Crimson Peak (2015), the wallpaper in this scene is the same wallpaper used in the foyer of Disney’s 'Haunted Mansion' ride. Guillermo Del Toro included it as an “inside joke”.

Fire Casts a Transparent Shadow. In Disney's Hercules, Hades Head of Fire Does The Same!

In Fantastic Mr. Fox (2009), when Mr. Fox achieves his “happiness”, the song “Love” plays. This was the same song used in Disney’s Robin Hood (1973), when two other fox characters achieved their happiness.

In "Ralph Breaks the Internet" when the Tron game glitches, a small floating item can be seen for a couple of seconds. This is the character "Bit" from the original 1982 Disney film "Tron".

[The Jungle Book 2017] Mowgli picks up a cowbell and inspects it before meeting 'King Louie' played by Christopher Walken.

In Disney's Cars; at the final race two vehicles can be seen spitting over the edge of the arena.