In Inside Out, each memory is a glowing orb whose colours match the movie's five emotions: yellow for joy, blue for sadness, red for anger, purple for fear, and green for disgust.

When it seems like all is lost — when she and Bing Bong are stranded in the dark abyss of the memory dump, with seemingly no way out — Joy actually has to cry, and for a surprisingly long time ...

8 Things ‘Inside Out’ Teaches Viewers About Emotions, Memory and the Mind How many basic emotions really exist? Can memories or personality islands ever disappear? What should be in a sequel?

The way Inside Out portrays it, recall of episodic memory works a lot like playing a video on your iPhone — including two-finger-swipe multi-touch dynamics.