Little Nemo: Adventures in Slumberland is an anime film that premiered in summer 1989, produced by Tokyo Movie Shinsha.

About the production: the story comes from a other, the film runs about 94 minutes and its current status is "finished".

Its main genres are adventure and fantasy, with themes such as Kids, Musical Theater, Ojou-sama and Male Protagonist.

On AniList, Little Nemo: Adventures in Slumberland has an average score of 65%, a good score, and appears on 3,047 users' lists.

Welcome to the fantasy world of "Little Nemo," where dreams of enchanted lands and new friends take young Nemo into an exciting, fun-filled adventure through Slumberland. On one unforgettable night, Nemo falls asleep. Soon, with the help of his flying pet squirrel Icarus and his friend Professor Genius, they journey together into Slumberland. Nemo is lovingly embraced by the people of Slumberland, particularly the King, who adopts Nemo and makes him heir to the throne. He is entrusted with two very special possessions: the prized royal Scepter, and a mysterious key that unlocks many secrets! Though Nemo is warned not to open the one door with the power to destroy Slumberland, temptation proves too strong and the King is abducted as a black cloud of nightmares washes over the formerly idyllic dreamscape. Now, if Nemo is to reverse his error and bring the King back, he must rally his friends and journey deep into Nightmare Land. (Source: Discotek Media)

Official synopsis from AniList.