Inside Out — Easter Eggs & Hidden Details

The five emotions are each built on a specific shape that encodes what they are: Joy is a star, Sadness a teardrop, Anger a fire brick, Fear a raw nerve, and Disgust a stalk of broccoli. It is the most load-bearing hidden detail in the film — it is why five brand-new characters are legible in the first thirty seconds, and why Anger's proportions read as furious before he opens his mouth. Design doing the work that dialogue would otherwise have to.

Pixar's CalArts signature appears as graffiti on a wall behind Riley, visible as she takes a call from her parents later in the film. It is one of the studio's rougher placements — no license plate, no room number, just tagged onto a piece of urban set dressing — which suits a film whose second half is about a kid running away through a city that has stopped feeling safe.

The regal dragon hanging in a portrait in Riley's Imagination Land is Figment, the small purple dragon who has been the mascot of the Journey Into Imagination pavilion at Walt Disney World's Epcot since 1983. Pixar cameos usually stay inside Pixar; reaching sideways into a decades-old theme-park character — and putting him specifically in the imagination district — is a much deeper cut into Disney's own history than the studio normally attempts.

On the shelves in Riley's bedroom sits a board game called Find Me!, and the cover art is a clownfish — Finding Nemo rebuilt as an in-universe consumer product rather than a poster or a toy. Pixar's better cross-references translate themselves into the world they land in, and a plausible mid-2000s family board game is exactly what Finding Nemo would have generated in Riley's Minnesota.

Pixar released two films in 2015, and the first spends a surprising amount of effort selling the second. A board game on Riley's shelf is called Dinosaur World, and among the dinosaurs elsewhere in the film is Arlo, the young Apatosaurus who would headline The Good Dinosaur that November. Two plants for the same upcoming film in one movie is unusually aggressive by the studio's standards.

A cooking magazine lying on the table in the family's San Francisco apartment carries Colette Tatou from Ratatouille on its cover — the only woman in Gusteau's kitchen, promoted in the intervening years to magazine-cover chef. It is a cameo that functions as a career update: the character most explicitly denied recognition in her own film has, in this universe, gone on to get it.

During the drive to San Francisco, the family passes a row of small blue birds crowded onto a telephone wire — the cast of For the Birds, the 2000 Pixar short about a flock bullying an outsider until the wire flings them all into humiliation. It won the studio an Academy Award. Dropping them into the road trip that uproots Riley is a nice private rhyme: a short film about being the odd one out, glimpsed on the way to becoming the odd one out.

The truck appears three times in Inside Out, which is among the highest counts in the catalogue — and unusually, Pete Docter declined to reveal the locations, leaving the hunt open. The most reliably reported sighting is inside one of the yellow memory orbs, visible as Joy first chases after Bing Bong; the other two are generally placed on the streets of San Francisco. Treat the specific positions as community consensus rather than studio fact.

Tripledent gum — 'Tripledent gum will make you smile' — surfaces repeatedly through the film, launched by the Mind Workers whenever they are bored, and it is the film's sharpest structural gag. The jingle is not a plot device; it is a demonstration. An advertising hook lodges in long-term memory and resurfaces uninvited for decades, which is exactly what the film has just spent an hour explaining that memories do. It is also the only earworm in the movie designed to follow you out of the cinema.