The Pagemaster (1994) - Trailer
A cowardly boy, who buries himself in accident statistics, enters a library to escape a storm, only to be transformed into an animated illustration by the Pagemaster. He has to work through obstacles from classic books to return to real-life.
Directors: Pixote Hunt, Joe Johnston
Writers: David Kirschner, David Casci, David Casci
Stars: Macaulay Culkin, Kanin Howell, Alexis Kirschner
https://www.imdb.com/title/tt0110763/