Marin le poisson-clown, patauge près de son rocher de corail, avec son fils Némo, l'écartant le plus possible des dangers de l'océan. Mais un jour, Némo disparaît ; Marin part à sa recherche. Seulement Némo est maintenant enfermé dans l'aquarium d'un dentiste. Au cours de sa quête, Marin se verra rejoindre par la jolie Dory, un poisson chirurgien bleu victime de trous de mémoires. Face au danger, Marin va démontrer son courage, poussé par l'optimisme de Dory. -Thingol-

Little Nemo: Adventures in Slumberland was released in American theaters in 1992. However, at one point earlier in its development many people from Studio Ghibli (Spirited Away, My Neighbour Totoro) had been involved with the project. In 1984 they produced this test pilot.

Little Nemo: Adventures in Slumberland was released in American theaters in 1992. However, at one point earlier in its development many people from Studio Ghibli (Spirited Away, My Neighbour Totoro) had been involved with the project. In 1984 they produced a test pilot. In 1987, Osamu Dezaki directed a third one (as a very first one was made by Sadao Tsukioka in the mid-1970s).

A pilot film directed by Sadao Tsukioka for Little Nemo, the first of three that were made.