5. It's Pete Docter's Second "Inside-The-Mind" Film... And At Least Disney's Third
Pete Docter's other film with this theme was part of the fondly remembered (if poorly recorded) Disney World attraction Cranium Command, open from 1989 to 2007. The movie had a very different analogy for the mind, more military than office comedy, and it was divided between reason and emotion rather than Inside Out's spectrum, but it featured some similar themes of growing up. But that wasn't Disney's first flirtation with the mind. In 1943, they made Reason And Emotion, a wartime propaganda film about the brain's response to Adolf Hitler. The upshot of it was that Hitler had no reason, but his speeches were very effective on those who let their emotions rule them. It was nominated for an Academy Award.