What is that old movie with the boy who becomes a caricature and falls into a library?

In the episode of Spongebob Sleepy Time (that invades the dreams others), comes into the dream of Gary and falls into a circular library, I remember a scene in a film-old children when a child becomes a caricature, and the books come to life. What is the movie? I think it might be 80.

The Pagemaster

Spongebob-Sleepy Time(Sped Up)

Sleepy Time/Suds $1.99 …

SpongeBob SquarePants – The Complete 1st Season $14.50 All 40 episodes from the debut season–including “Reef Blower,” “Tea at the Treedome,” “Mermaidman and Barnacleboy,” “I Was a Teenage Gary” and “Hooky”–are featured in a three-disc set. 8 hrs. total. Standard; Soundtrack: English Dolby Digital stereo; selected audio commentary; featurettes; music videos; sing-alongs; more. **40 episodes on 3 discs. 8 hrs.**…