“‘Runaway Brain’ was used internally by Disney as ‘an example of what not to do.’” The short movie was supposed to be a reinvention of Mickey Mouse, wherein Mickey turns monstrous after his brain is swapped out with “Dr. Frankenollie’s” monster; it was purposefully dark in theme, even after executives’ were requested to tone it down. Ultimately, despite achieving what it set out to do, Disney weren’t happy with it; although they tried to bury it, a quick Google search will reveal the 7 minute horror. Read full article here