Monster Movie Facts, Easter Eggs and hidden details

Many doors feature multiple crossbars, presumably because of the dramatic size variation between some of the monsters

Mike Wazowski wakes up saying "I know you're a princess and I'm just a stable boy," a reference to Princess Bride, a film where Billy Crystal has a cameo.

There is a statue of the wind demon Pazuzu (Captain Howdy) from the Exorcist (1973) in the underwater city Godzilla rests in

A giant octopus is featured. Actors are seen lifting the tentacles onto themselves when "fighting" the octopus. This is because Director Ed Wood had stolen the prop from Republic Pictures backlot but had neglected to steal the accompanying motor.

A Viking longship can be spotted among the ancient ruins of the Atlantis-like underwater city. Implying the Vikings got there first, as usual.

For Godzilla: King Of The Monsterss (2019) Godzilla's back spikes were updated from his 2014 version to look like his first appearance in Gojira (1954)

Celia calls Mike a "charmer" in Monsters Inc (2001), referencing the fact that her hair snakes are also in love with him (i.e. he's a snake charmer).

Godzilla, King Ghidorah, Mothra and Rodan are credited as him/herself.

- Actor Ben Savage, who plays Brian's little brother Eric, can also briefly be seen playing a monster during the "Monster Ball" scene.

Godzilla: King Of The Monsters (2019) each of Ghidorah's heads is slightly different and designed after different appearances in the original Toho movies

Dr. Chen is a twin and says she is 3rd generation Monarch. One photo she has is her twin mother and aunt and it is marked "INFANT ISLAND, 1961". The original Mothra was released in 1961. It starts on Infant Island and involves a set of fairy twins.

The bark on trees are visually similar to scales to keep in line with the monster world theme

All architecture from doors, windows and molding incorporates either Horns, Teeth and/or Eyes.

Inc. (2001); Boo tries to give Sulley a Nemo (Finding Nemo (2003)) toy.

Inc, another clown fish (besides the one in Boo's room) makes an appearance right above Mike's head on the other side of the door Randall was thrown through towards the end of the movie.

Godzilla: King Of The Monsters (2019), a skeleton of Anguirus can be spotted just right after Dr. Serizawa bids farewell to Godzilla.

When several monsters are being interviewed on TV about the incident at Harryhausen's, some background extras are waving at the camera. One monster even lifts the hand of his little kid and waves it around.

When Don Carlton flashes his business card, the address is 1200 Dark Avenue. This is a nod to the actual Pixar Animation Studios location, which is 1200 Park Avenue in Emeryville, California.

Inc. (2001), the snakes in Celia's hair look around in alarm when she gasps.

There's a "winds of change" poster on Randall's side of the dorm. Randall mentions the winds of change in Monsters, Inc. (2001), which takes place after the events of Monsters University.

Inc." (2001), Sully's chair is designed with a hole through which he can fit his tail for comfortable seating.

The paint on bell that rings at the beginning and end of each shift on the Scare Floor in 'Monsters Inc' (2001) is worn away around the area where the hammer strikes it.

The freshest X-mark compared to older ones on Mike's calendar.

Boo's real name is written on the top left corner of her drawing.

Inc. the reason the countdown starts from seven is because Jerry the scare floor manager has seven fingers

You see a employee go through a tedious process involving scanning his butt. Later you when the General enters you see him pulling up his trousers implying he went through the same ordeal.

When Mike Wazowski sings "She's Out of Our Hair" it parodies Michael Jackson's "She's Out of My Life" music video, barstool and all

Inc. (2001), there are multiple sizes of coffee cup for each of the different sized monsters.

Inc. (2001) Sully has a hole in the back of his chair for his tail

Sully says laughter has ten times the energy of scream at the end of the movie and the new tanks for capturing laughter are now much larger than the ones that captured screams than those in the rest of the movie.

Instead of bass & treble, the knobs on James Sullivan's amplifier are for bass & perch

The camera zooms and then refocuses separately, mimicking how a real camera would operate

Inc. (2001) you get a glimpse at Boo's Scare Report which contains details relevant to scaring, such as the room description, her being a bedwetter and the family having acquired a dog.

Mike will often make a big deal about crossing over thresholds. The movie typically makes these moments really obvious to the audience. In this scene, it is very subtle and quite poignant

Constance Nebbercracker, whose spirit haunts the house, is first introduced with the slogan "The Lady As Big As A House"

Sully's answer on the final question of his test reflects how he tries to get by on natural ability, rather than hard work and study.

The first kid profile we see is just Boy Boo (sorry for the bad quality)

King Ghidorah's middle head sometimes snaps at the other two heads, and they also look at him for behavioral cues demonstrating that the middle head is dominant.

Inc. (2001), we see Roz close her office as the CDA floods the building during the '2319' scene. As we later find out, she's agent 00001 of the CDA and was closing her office to respond to the emergency.

If you press Play five times in a row when in the DVD Options menu with Subtitles selected, this lost footage plays. John Lasseter confirmed in multiple interviews this song was cut due to time, and was extremely upset it didn't make the final version due to its emotional poignancy.

The circus calls Constance "The Lady as Big as a House". Her spirit later possesses a house after she dies.

General W.R. Monger imitates cupping breasts for a quick moment when describing Ginormica and shamefully puts his hands away

When Mike says there are five properties of an effective roar, he uses two hands to signal "five", since he has four fingers on each hand.

Nuclear Godzilla's pulse blast thing has Mothras wings in it. Showing the part of Mothra at her death that entered Godzilla to heal him.

Liam Neeson (who voices The Monster) appears in a photograph as Connor's Grandfather.

The four Toho kaiju are given actor credit

The credits scene hint to more Mecha Titans such as Mecha Godzilla, and the popular fan theory that King Kong could have been man made.

[@06:46] In Monsters Inc(2001), While Mike and Sully are watching the Monsters Inc commercial near the end, Everyone in the background is smiling except Randall. That secretly foreshadows Randall's jealousy to Mike and Sully throughout the film before being introduced.

When the team sends probes to inspect Godzilla's home, you can see the Japanese Katakana characters for Godzilla (???) on the left of Godzilla's cave painting

They used motion capture for Ghidorah, & it's kinda funny to watch..