The classic Winsor McCay newspaper strip Little Nemo in Slumberland was adapted into an animated film in 1989 after a lengthy period in development hell that included scripts from both Moebius and the director of Adventures in Babysitting. Hayao Miyazaki and Isao Takehata of Studio Ghibli (Spirited Away, Princess Mononoke) were also involved early on before parting over creative differences, leaving behind this gorgeous four-minute test pilot of Little Nemo as an anime. What could have been!